vds_ios/VDS/Components/Button/Button.swift
Matt Bruce 7687c42fe2 minor fixes
Signed-off-by: Matt Bruce <matt.bruce@verizon.com>
2022-09-23 16:38:52 -05:00

274 lines
9.2 KiB
Swift

//
// Button.swift
// VDS
//
// Created by Jarrod Courtney on 9/16/22.
//
import Foundation
import UIKit
import VDSColorTokens
import VDSFormControlsTokens
import Combine
public class Button:ButtonBase<DefaultButtonModel>{}
open class ButtonBase<ModelType: ButtonModel>: UIButton, ModelHandlerable, ViewProtocol, Resettable {
//--------------------------------------------------
// MARK: - Combine Properties
//--------------------------------------------------
@Published public var model: ModelType = ModelType()
public var modelPublisher: Published<ModelType>.Publisher { $model }
public var subscribers = Set<AnyCancellable>()
//--------------------------------------------------
// MARK: - Private Properties
//--------------------------------------------------
private var minWidthConstraint: NSLayoutConstraint?
private var widthConstraint: NSLayoutConstraint?
private var heightConstraint: NSLayoutConstraint?
//--------------------------------------------------
// MARK: - Properties
//--------------------------------------------------
@Proxy(\.model.surface)
open var surface: Surface
@Proxy(\.model.disabled)
open var disabled: Bool {
didSet {
isEnabled = !disabled
}
}
@Proxy(\.model.text)
open var text: String?
@Proxy(\.model.use)
open var use: Use
@Proxy(\.model.size)
open var size: ButtonSize
@Proxy(\.model.width)
open var width: CGFloat?
open override var isEnabled: Bool {
get { !model.disabled }
set {
//create local vars for clear coding
let disabled = !newValue
if model.disabled != disabled {
model.disabled = disabled
}
isUserInteractionEnabled = isEnabled
}
}
//--------------------------------------------------
// MARK: - Configuration Properties
//--------------------------------------------------
private var buttonBackgroundColorConfiguration: UseableColorConfiguration<ModelType> = {
return UseableColorConfiguration<ModelType>().with {
$0.primary.enabled.lightColor = VDSColor.backgroundPrimaryDark
$0.primary.enabled.darkColor = VDSColor.backgroundPrimaryLight
$0.primary.disabled.lightColor = VDSColor.interactiveDisabledOnlight
$0.primary.disabled.darkColor = VDSColor.interactiveDisabledOndark
$0.secondary.enabled.lightColor = UIColor.clear
$0.secondary.enabled.darkColor = UIColor.clear
$0.secondary.disabled.lightColor = UIColor.clear
$0.secondary.disabled.darkColor = UIColor.clear
}
}()
private var buttonBorderColorConfiguration: UseableColorConfiguration<ModelType> = {
return UseableColorConfiguration<ModelType>().with {
$0.primary.enabled.lightColor = VDSColor.elementsPrimaryOndark
$0.primary.enabled.darkColor = VDSColor.elementsPrimaryOnlight
$0.primary.disabled.lightColor = VDSColor.interactiveDisabledOnlight
$0.primary.disabled.darkColor = VDSColor.interactiveDisabledOndark
$0.secondary.enabled.lightColor = VDSColor.elementsPrimaryOnlight
$0.secondary.enabled.darkColor = VDSColor.elementsPrimaryOndark
$0.secondary.disabled.lightColor = VDSColor.interactiveDisabledOnlight
$0.secondary.disabled.darkColor = VDSColor.interactiveDisabledOndark
}
}()
private var buttonTitleColorConfiguration: UseableColorConfiguration<ModelType> = {
return UseableColorConfiguration<ModelType>().with {
$0.primary.enabled.lightColor = VDSColor.elementsPrimaryOndark
$0.primary.enabled.darkColor = VDSColor.elementsPrimaryOnlight
$0.primary.disabled.lightColor = VDSColor.elementsPrimaryOndark
$0.primary.disabled.darkColor = VDSColor.elementsPrimaryOnlight
$0.secondary.enabled.lightColor = VDSColor.elementsPrimaryOnlight
$0.secondary.enabled.darkColor = VDSColor.elementsPrimaryOndark
$0.secondary.disabled.lightColor = VDSColor.interactiveDisabledOnlight
$0.secondary.disabled.darkColor = VDSColor.interactiveDisabledOndark
}
}()
//--------------------------------------------------
// MARK: - Initializers
//--------------------------------------------------
required public init() {
super.init(frame: .zero)
initialSetup()
}
public required init(with model: ModelType) {
super.init(frame: .zero)
initialSetup()
set(with: model)
}
public override init(frame: CGRect) {
super.init(frame: .zero)
initialSetup()
set(with: model)
}
public required init?(coder: NSCoder) {
super.init(coder: coder)
initialSetup()
}
//--------------------------------------------------
// MARK: - Public Functions
//--------------------------------------------------
open func initialSetup() {
backgroundColor = .clear
translatesAutoresizingMaskIntoConstraints = false
accessibilityCustomActions = []
accessibilityTraits = .staticText
setupUpdateView()
setup()
}
open func setup() {
translatesAutoresizingMaskIntoConstraints = false
titleLabel?.adjustsFontSizeToFitWidth = false
titleLabel?.lineBreakMode = .byTruncatingTail
//only 1 of the 2 widths can be on at the same time
widthConstraint = widthAnchor.constraint(equalToConstant: 0)
minWidthConstraint = widthAnchor.constraint(greaterThanOrEqualToConstant: model.size.minimumWidth)
//height
heightConstraint = heightAnchor.constraint(equalToConstant: model.size.height)
heightConstraint?.isActive = true
}
open func reset() {
model = ModelType()
accessibilityCustomActions = []
accessibilityTraits = .staticText
}
//--------------------------------------------------
// MARK: - Overrides
//--------------------------------------------------
open func updateView(viewModel: ModelType) {
let bgColor = buttonBackgroundColorConfiguration.getColor(viewModel)
let borderColor = buttonBorderColorConfiguration.getColor(viewModel)
let titleColor = buttonTitleColorConfiguration.getColor(viewModel)
let borderWidth = viewModel.use == .secondary ? 1.0 : 0.0
let buttonHeight = viewModel.size.height
let cornerRadius = buttonHeight / 2
let minWidth = viewModel.size.minimumWidth
let font = viewModel.size == .large ? TypographicalStyle.BoldBodyLarge.font : TypographicalStyle.BoldBodySmall.font
let edgeInsets = viewModel.size.edgeInsets
if let text = viewModel.text {
setTitle(text, for: .normal)
} else {
setTitle("No ViewModel Text", for: .normal)
}
titleLabel?.font = font
backgroundColor = bgColor
setTitleColor(titleColor, for: .normal)
layer.borderColor = borderColor.cgColor
layer.cornerRadius = cornerRadius
layer.borderWidth = borderWidth
contentEdgeInsets = edgeInsets
minWidthConstraint?.constant = minWidth
heightConstraint?.constant = buttonHeight
if let width = viewModel.width, width > minWidth {
widthConstraint?.constant = width
widthConstraint?.isActive = true
minWidthConstraint?.isActive = false
} else {
widthConstraint?.isActive = false
minWidthConstraint?.isActive = true
}
}
//--------------------------------------------------
// MARK: - PRIVATE
//--------------------------------------------------
private class UseableColorConfiguration<ModelType:Disabling & Surfaceable & Useable> : Colorable {
public var primary = DisabledSurfaceColorConfiguration<ModelType>()
public var secondary = DisabledSurfaceColorConfiguration<ModelType>()
required public init(){}
public func getColor(_ viewModel: ModelType) -> UIColor {
return viewModel.use == .primary ? primary.getColor(viewModel) : secondary.getColor(viewModel)
}
}
}
extension ButtonSize {
public var height: CGFloat {
switch self {
case .large:
return 44
case .small:
return 32
}
}
public var minimumWidth: CGFloat {
switch self {
case .large:
return 76
case .small:
return 60
}
}
public var edgeInsets: UIEdgeInsets {
var verticalPadding = 0.0
var horizontalPadding = 0.0
switch self {
case .large:
verticalPadding = 12
horizontalPadding = 24
break
case .small:
verticalPadding = 8
horizontalPadding = 16
break
}
return UIEdgeInsets(top: verticalPadding, left: horizontalPadding, bottom: verticalPadding, right: horizontalPadding)
}
}
extension Use {
public var color: UIColor {
return self == .primary ? VDSColor.backgroundPrimaryDark : .clear
}
}