first cut of Toggle

Signed-off-by: Matt Bruce <matt.bruce@verizon.com>
This commit is contained in:
Matt Bruce 2022-07-25 14:51:12 -05:00
parent 97d231089c
commit 6b77c2829a
15 changed files with 804 additions and 4 deletions

View File

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//
// Control.swift
// VDS
//
// Created by Matt Bruce on 7/22/22.
//
import Foundation
import UIKit
@objcMembers open class Control: UIControl {
//--------------------------------------------------
// MARK: - Properties
//--------------------------------------------------
private var initialSetupPerformed = false
//--------------------------------------------------
// MARK: - Initializers
//--------------------------------------------------
public override init(frame: CGRect) {
super.init(frame: .zero)
initialSetup()
}
public init() {
super.init(frame: .zero)
initialSetup()
}
public required init?(coder: NSCoder) {
super.init(coder: coder)
fatalError("Control does not support xib.")
}
//--------------------------------------------------
// MARK: - Setup
//--------------------------------------------------
public func initialSetup() {
if !initialSetupPerformed {
initialSetupPerformed = true
setupView()
}
}
open func reset() {
backgroundColor = .clear
}
}
// MARK: - ViewProtocol
extension Control: ViewProtocol {
open func updateView(_ size: CGFloat) { }
/// Will be called only once.
open func setupView() {
translatesAutoresizingMaskIntoConstraints = false
insetsLayoutMarginsFromSafeArea = false
}
}

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@ -0,0 +1,15 @@
//
// ToggleModel.swift
// VDS
//
// Created by Matt Bruce on 7/22/22.
//
import Foundation
import UIKit
public protocol ToggleModelProtocol: Invertable, FormFieldable, DataTrackable, Disabling {
var id: String? { get set }
var hideText: Bool { get set }
var on: Bool { get set }
}

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@ -0,0 +1,347 @@
//
// Toggle.swift
// VDS
//
// Created by Matt Bruce on 7/22/22.
//
import Foundation
import UIKit
import VDSColorTokens
/**
A custom implementation of Apple's UISwitch.
By default this class begins in the off state.
Container: The background of the toggle control.
Knob: The circular indicator that slides on the container.
*/
@objcMembers open class VDSToggle: Control, Modelable, Changable {
public typealias ModelType = ToggleModelProtocol
//--------------------------------------------------
// MARK: - Properties
//--------------------------------------------------
public var model: ModelType?
/// Holds the on and off colors for the container.
public var containerTintColor: (on: UIColor, off: UIColor) = (on: .green, off: .black)
/// Holds the on and off colors for the knob.
public var knobTintColor: (on: UIColor, off: UIColor) = (on: .white, off: .white)
/// Holds the on and off colors for the disabled state..
public var disabledTintColor: (container: UIColor, knob: UIColor) = (container: .gray, knob: .white)
/// Set this flag to false if you do not want to animate state changes.
public var isAnimated = true
public var onChange: Blocks.ActionBlock?
// Sizes are from InVision design specs.
static let containerSize = CGSize(width: 51, height: 31)
static let knobSize = CGSize(width: 28, height: 28)
private var knobView: UIView = {
let view = UIView()
view.translatesAutoresizingMaskIntoConstraints = false
view.backgroundColor = .white
view.layer.cornerRadius = VDSToggle.getKnobHeight() / 2.0
return view
}()
//--------------------------------------------------
// MARK: - Computed Properties
//--------------------------------------------------
open override var isEnabled: Bool {
didSet {
isUserInteractionEnabled = isEnabled
changeStateNoAnimation(isEnabled ? isOn : false)
setToggleAppearanceFromState()
accessibilityHint = VDSHelper.localizedString?(isEnabled ? "AccToggleHint" : "AccDisabled")
}
}
/// Simple means to prevent user interaction with the toggle.
public var isLocked: Bool = false {
didSet { isUserInteractionEnabled = !isLocked }
}
/// The state on the toggle. Default value: false.
open var isOn: Bool = false {
didSet {
if isAnimated {
UIView.animate(withDuration: 0.2, delay: 0.0, options: .curveEaseIn, animations: {
if self.isOn {
self.knobView.backgroundColor = self.knobTintColor.on
self.backgroundColor = self.containerTintColor.on
} else {
self.knobView.backgroundColor = self.knobTintColor.off
self.backgroundColor = self.containerTintColor.off
}
}, completion: nil)
UIView.animate(withDuration: 0.33, delay: 0, usingSpringWithDamping: 0.6, initialSpringVelocity: 0.2, options: [], animations: {
self.constrainKnob()
self.knobWidthConstraint?.constant = Self.getKnobWidth()
self.layoutIfNeeded()
}, completion: nil)
} else {
setToggleAppearanceFromState()
self.constrainKnob()
}
model?.on = isOn
accessibilityValue = VDSHelper.localizedString?(isOn ? "AccOn" : "AccOff")
setNeedsLayout()
layoutIfNeeded()
}
}
//--------------------------------------------------
// MARK: - Constraints
//--------------------------------------------------
private var knobLeadingConstraint: NSLayoutConstraint?
private var knobTrailingConstraint: NSLayoutConstraint?
private var knobHeightConstraint: NSLayoutConstraint?
private var knobWidthConstraint: NSLayoutConstraint?
private var heightConstraint: NSLayoutConstraint?
private var widthConstraint: NSLayoutConstraint?
private func constrainKnob() {
knobLeadingConstraint?.isActive = false
knobTrailingConstraint?.isActive = false
_ = isOn ? constrainKnobOn() : constrainKnobOff()
knobTrailingConstraint?.isActive = true
knobLeadingConstraint?.isActive = true
}
private func constrainKnobOn() {
knobTrailingConstraint = trailingAnchor.constraint(equalTo: knobView.trailingAnchor, constant: 2)
knobLeadingConstraint = knobView.leadingAnchor.constraint(greaterThanOrEqualTo: leadingAnchor)
}
private func constrainKnobOff() {
knobTrailingConstraint = trailingAnchor.constraint(greaterThanOrEqualTo: knobView.trailingAnchor)
knobLeadingConstraint = knobView.leadingAnchor.constraint(equalTo: leadingAnchor, constant: 2)
}
//--------------------------------------------------
// MARK: - Initializers
//--------------------------------------------------
public required init(model: ToggleModelProtocol) {
self.model = model
super.init()
}
public required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
public override init(frame: CGRect) {
super.init(frame: frame)
}
public convenience override init() {
self.init(frame: .zero)
}
//--------------------------------------------------
// MARK: - Lifecycle
//--------------------------------------------------
public override func updateView(_ size: CGFloat) {
super.updateView(size)
heightConstraint?.constant = Self.getContainerHeight()
widthConstraint?.constant = Self.getContainerWidth()
knobHeightConstraint?.constant = Self.getKnobHeight()
knobWidthConstraint?.constant = Self.getKnobWidth()
layer.cornerRadius = Self.getContainerHeight() / 2.0
knobView.layer.cornerRadius = Self.getKnobHeight() / 2.0
changeStateNoAnimation(isOn)
}
public override func setupView() {
super.setupView()
isAccessibilityElement = true
accessibilityHint = VDSHelper.localizedString?( "AccToggleHint")
accessibilityLabel = VDSHelper.localizedString?( "Toggle_buttonlabel")
accessibilityTraits = .button
heightConstraint = heightAnchor.constraint(equalToConstant: Self.containerSize.height)
heightConstraint?.isActive = true
widthConstraint = widthAnchor.constraint(equalToConstant: Self.containerSize.width)
widthConstraint?.isActive = true
layer.cornerRadius = Self.getContainerHeight() / 2.0
backgroundColor = containerTintColor.off
addSubview(knobView)
knobHeightConstraint = knobView.heightAnchor.constraint(equalToConstant: Self.knobSize.height)
knobHeightConstraint?.isActive = true
knobWidthConstraint = knobView.widthAnchor.constraint(equalToConstant: Self.knobSize.width)
knobWidthConstraint?.isActive = true
knobView.centerYAnchor.constraint(equalTo: centerYAnchor).isActive = true
knobView.topAnchor.constraint(greaterThanOrEqualTo: topAnchor).isActive = true
bottomAnchor.constraint(greaterThanOrEqualTo: knobView.bottomAnchor).isActive = true
constrainKnobOff()
}
public override func reset() {
super.reset()
backgroundColor = containerTintColor.off
knobView.backgroundColor = knobTintColor.off
accessibilityLabel = VDSHelper.localizedString?( "Toggle_buttonlabel")
isAnimated = true
onChange = nil
}
public static func getContainerWidth() -> CGFloat {
let size = Self.containerSize.width
guard let block = VDSHelper.sizeForDevice else { return size }
return block(size, .iPadPortrait, CGFloat(size * 1.5))
}
public static func getContainerHeight() -> CGFloat {
let size = Self.containerSize.height
guard let block = VDSHelper.sizeForDevice else { return size }
return block(size, .iPadPortrait, CGFloat(size * 1.5))
}
public static func getKnobWidth() -> CGFloat {
let size = Self.knobSize.width
guard let block = VDSHelper.sizeForDevice else { return size }
return block(size, .iPadPortrait, CGFloat(size * 1.5))
}
public static func getKnobHeight() -> CGFloat {
let size = Self.knobSize.width
guard let block = VDSHelper.sizeForDevice else { return size }
return block(size, .iPadPortrait, CGFloat(size * 1.5))
}
//--------------------------------------------------
// MARK: - Actions
//--------------------------------------------------
open override func sendAction(_ action: Selector, to target: Any?, for event: UIEvent?) {
super.sendAction(action, to: target, for: event)
toggleAndAction()
}
open override func sendActions(for controlEvents: UIControl.Event) {
super.sendActions(for: controlEvents)
toggleAndAction()
}
/// This will toggle the state of the Toggle and execute the actionBlock if provided.
public func toggleAndAction() {
isOn.toggle()
onChange?()
}
private func changeStateNoAnimation(_ state: Bool) {
// Hold state in case User wanted isAnimated to remain off.
let isAnimatedState = isAnimated
isAnimated = false
isOn = state
isAnimated = isAnimatedState
}
override open func accessibilityActivate() -> Bool {
// Hold state in case User wanted isAnimated to remain off.
guard isUserInteractionEnabled else { return false }
let isAnimatedState = isAnimated
isAnimated = false
sendActions(for: .touchUpInside)
isAnimated = isAnimatedState
return true
}
//--------------------------------------------------
// MARK: - UIResponder
//--------------------------------------------------
open override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
UIView.animate(withDuration: 0.1, animations: {
self.knobWidthConstraint?.constant += Constants.PaddingOne
self.layoutIfNeeded()
})
}
public override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
knobReformAnimation()
// Action only occurs of the user lifts up from withing acceptable region of the toggle.
guard let coordinates = touches.first?.location(in: self),
coordinates.x > -20,
coordinates.x < bounds.width + 20,
coordinates.y > -20,
coordinates.y < bounds.height + 20
else { return }
sendActions(for: .touchUpInside)
}
public func touchesCancelled(_ touches: Set<UITouch>, with event: UIEvent) {
knobReformAnimation()
sendActions(for: .touchCancel)
}
//--------------------------------------------------
// MARK: - Animations
//--------------------------------------------------
public func setToggleAppearanceFromState() {
backgroundColor = isEnabled ? isOn ? containerTintColor.on : containerTintColor.off : disabledTintColor.container
knobView.backgroundColor = isEnabled ? isOn ? knobTintColor.on : knobTintColor.off : disabledTintColor.knob
}
public func knobReformAnimation() {
if isAnimated {
UIView.animate(withDuration: 0.1, animations: {
self.knobWidthConstraint?.constant = Self.getKnobWidth()
self.layoutIfNeeded()
}, completion: nil)
} else {
knobWidthConstraint?.constant = Self.getKnobWidth()
layoutIfNeeded()
}
}
// MARK:- MoleculeViewProtocol
open func set(with model: ModelType) {
self.model = model
isOn = model.on
changeStateNoAnimation(isOn)
isAnimated = true
isEnabled = !model.disabled
}
}

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@ -0,0 +1,113 @@
//
// UIColor.swift
// VDS
//
// Created by Matt Bruce on 7/22/22.
//
import Foundation
import UIKit
extension UIColor {
//--------------------------------------------------
// MARK: - Functions
//--------------------------------------------------
/// Convenience to get a grayscale UIColor where the same value is used for red, green, and blue.
public class func grayscale(rgb: Int, alpha: CGFloat = 1.0) -> UIColor {
let grayscale = CGFloat(rgb) / 255.0
return UIColor(red: grayscale, green: grayscale, blue: grayscale, alpha: alpha)
}
/// Convenience to get a UIColor.
public class func color8Bits(red: Int, green: Int, blue: Int, alpha: CGFloat = 1.0) -> UIColor {
return UIColor(red: CGFloat(red) / 255.0, green: CGFloat(green) / 255.0, blue: CGFloat(blue) / 255.0, alpha: alpha)
}
/// Convenience to get a UIColor.
public class func color8Bits(red: CGFloat, green: CGFloat, blue: CGFloat, alpha: CGFloat = 1.0) -> UIColor {
return UIColor(red: red / 255.0, green: green / 255.0, blue: blue / 255.0, alpha: alpha)
}
/// Gets UIColor via an 8 digit hex string.
public class func getColorBy(hex: String) -> UIColor {
var hexint: UInt64 = 0
let scanner = Scanner(string: hex)
scanner.charactersToBeSkipped = CharacterSet(charactersIn: "#")
scanner.scanHexInt64(&hexint)
return UIColor(red: (CGFloat((hexint & 0xFF0000) >> 16)) / 255,
green: (CGFloat((hexint & 0xFF00) >> 8)) / 255,
blue: (CGFloat(hexint & 0xFF)) / 255,
alpha: 1)
}
/// Gets UIColor via an 8 digit hex string. The last two being the alpha channel.
public class func getColorWithTransparencyBy(hex: String) -> UIColor {
var hexint: UInt64 = 0
let scanner = Scanner(string: hex)
scanner.charactersToBeSkipped = CharacterSet(charactersIn: "#")
scanner.scanHexInt64(&hexint)
return UIColor(red: (CGFloat((hexint & 0xFF000000) >> 24)) / 255,
green: (CGFloat((hexint & 0xFF0000) >> 16)) / 255,
blue: (CGFloat((hexint & 0xFF00) >> 8)) / 255,
alpha: (CGFloat(hexint & 0xFF)) / 255)
}
public class func gradientColor(_ color: UIColor?) -> UIColor {
var h: CGFloat = 0
var s: CGFloat = 0
var b: CGFloat = 0
var a: CGFloat = 0
if color?.getHue(&h, saturation: &s, brightness: &b, alpha: &a) ?? false {
return UIColor(hue: h, saturation: max(s - 0.17, 0.0), brightness: min(b - 0.03, 1.0), alpha: a)
}
return .white
}
/// - parameter color: The UIColor intended to retrieve its hex value.
public class func hexString(for color: UIColor) -> String? {
guard let components = color.cgColor.components else { return nil }
let numberOfComponents = color.cgColor.numberOfComponents
if numberOfComponents >= 3 {
// RGB color space
let r = Int(CGFloat(components[0]) * 255)
let g = Int(CGFloat(components[1]) * 255)
let b = Int(CGFloat(components[2]) * 255)
// If alpha of color is less than 1.0 then alpha hex is relevant.
if color.cgColor.numberOfComponents == 4 && components[3] < 1.0 {
let a = Int(CGFloat(components[3]) * 255)
return String(format: "%02X%02X%02X%02X", r, g, b, a)
}
return String(format: "%02X%02X%02X", r, g, b)
} else if numberOfComponents == 2 {
// Monochromatic color space
let value = Int(CGFloat(components[0]) * 255)
// If alpha of color is less than 1.0 then alpha hex is relevant.
if components[1] < 1.0 {
let alpha = Int(CGFloat(components[1]) * 255)
return String(format: "%02X%02X%02X%02X", value, value, value, alpha)
}
return String(format: "%02X%02X%02X", value, value, value)
}
return nil
}
}

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//
// Changable.swift
// VDS
//
// Created by Matt Bruce on 7/22/22.
//
import Foundation
public protocol Changable {
var onChange: Blocks.ActionBlock? { get set }
}

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//
// DataTrackable.swift
// VDS
//
// Created by Matt Bruce on 7/22/22.
//
import Foundation
public protocol DataTrackable {
var dataAnalyticsTrack: String? { get set }
var dataClickStream: String? { get set }
var dataTrack: String? { get set }
}

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//
// Disabling.swift
// VDS
//
// Created by Matt Bruce on 7/22/22.
//
import Foundation
public protocol Disabling {
var disabled: Bool { get set }
}

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//
// FormFieldable.swift
// VDS
//
// Created by Matt Bruce on 7/22/22.
//
import Foundation
public protocol FormFieldable {
var inputId: String? { get set }
var value: AnyHashable? { get set }
}

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//
// Invertable.swift
// VDS
//
// Created by Matt Bruce on 7/22/22.
//
import Foundation
public protocol Invertable {
var inverted: Bool { get set }
}

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//
// Modelable.swift
// VDS
//
// Created by Matt Bruce on 7/22/22.
//
import Foundation
public protocol Modelable {
associatedtype ModelType
var model: ModelType? { get set }
func set(with model: ModelType)
}

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//
// ViewProtocol.swift
// VDS
//
// Created by Matt Bruce on 7/22/22.
//
import Foundation
import UIKit
public protocol ViewProtocol {
// Updates the ui to fit the right size.
func updateView(_ size: CGFloat)
// Can setup ui here. Should be called in the initialization functions.
func setupView()
}

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//
// TypeAlias.swift
// VDS
//
// Created by Matt Bruce on 7/22/22.
//
import Foundation
import UIKit
public struct Blocks {
public typealias ActionBlock = () -> ()
public typealias StringValueBlock = (_ key: String) -> (String)
public typealias SizeForDeviceTypeBlock = (_ size: CGFloat, _ deviceType: Enums.SizeDeviceType, _ deviceSize: CGFloat) -> (CGFloat)
}
public struct Constants {
public static let PaddingOne = 10.0
}
public struct Enums {
public enum SizeDeviceType {
case iPhone4Height
case iPhone5Height
case iPhone
case largeiPhone
case iPadPortrait
case iPadLandscape
case iPadProLandscape
}
}

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//
// VDSHelper.swift
// VDS
//
// Created by Matt Bruce on 7/22/22.
//
import Foundation
public struct VDSHelper {
public static var localizedString: Blocks.StringValueBlock?
public static var sizeForDevice: Blocks.SizeForDeviceTypeBlock?
}