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//
// SettingsCell.swift
// MullvadVPN
//
// Created by pronebird on 22/05/2019.
// Copyright © 2025 Mullvad VPN AB. All rights reserved.
//
import UIKit
enum SettingsDisclosureType {
case none
case chevron
case externalLink
case tick
var image: UIImage? {
switch self {
case .none:
nil
case .chevron:
UIImage.CellDecoration.chevronRight
case .externalLink:
UIImage.CellDecoration.externalLink
case .tick:
UIImage.CellDecoration.tick
}
}
}
class SettingsCell: UITableViewCell, CustomCellDisclosureHandling {
typealias InfoButtonHandler = () -> Void
let disclosureImageView = UIImageView(image: nil)
let mainContentContainer = UIView()
let leftContentContainer = UIView()
let rightContentContainer = UIView()
var infoButtonHandler: InfoButtonHandler? {
didSet {
infoButton.isHidden = infoButtonHandler == nil
let buttonAreaWidth =
UIMetrics.contentLayoutMargins.leading
+ UIMetrics
.contentLayoutMargins.trailing + 24
infoButton.widthAnchor
.constraint(
equalToConstant: infoButton.isHidden ? 0 : buttonAreaWidth
).isActive = true
}
}
var disclosureType: SettingsDisclosureType = .none {
didSet {
accessoryType = .none
let image = disclosureType.image?.withTintColor(
UIColor.Cell.disclosureIndicatorColor,
renderingMode: .alwaysOriginal
)
if let image {
disclosureImageView.image = image
disclosureImageView.adjustsImageSizeForAccessibilityContentSizeCategory = true
disclosureImageView.sizeToFit()
accessoryView = disclosureImageView
} else {
accessoryView = nil
}
}
}
let titleLabel: UILabel = {
let label = UILabel()
label.font = .mullvadSmallSemiBold
label.numberOfLines = 0
label.adjustsFontForContentSizeCategory = true
label.textColor = UIColor.Cell.titleTextColor
label.setContentHuggingPriority(.defaultHigh, for: .horizontal)
label.setContentCompressionResistancePriority(.defaultHigh, for: .horizontal)
return label
}()
let detailTitleLabel: UILabel = {
let label = UILabel()
label.font = .mullvadTiny
label.numberOfLines = 0
label.adjustsFontForContentSizeCategory = true
label.textColor = UIColor.Cell.detailTextColor
label.setContentHuggingPriority(.defaultLow, for: .horizontal)
label.setContentCompressionResistancePriority(.defaultLow, for: .horizontal)
return label
}()
private var subCellLeadingIndentation: CGFloat = 0
private let infoButton: UIButton = {
let button = UIButton(type: .custom)
button.setAccessibilityIdentifier(.infoButton)
button.tintColor = .white
button.setImage(UIImage.Buttons.info, for: .normal)
button.adjustsImageSizeForAccessibilityContentSizeCategory = true
button.isHidden = true
return button
}()
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
backgroundView = UIView()
backgroundView?.backgroundColor = UIColor.Cell.Background.normal
selectedBackgroundView = UIView()
selectedBackgroundView?.backgroundColor = UIColor.Cell.Background.selectedAlt
separatorInset = .zero
backgroundColor = .clear
contentView.backgroundColor = .clear
infoButton.addTarget(self, action: #selector(handleInfoButton(_:)), for: .touchUpInside)
subCellLeadingIndentation = contentView.layoutMargins.left + UIMetrics.TableView.cellIndentationWidth
rightContentContainer.setContentHuggingPriority(.required, for: .horizontal)
setLayoutMargins()
let infoButtonConstraint = infoButton.trailingAnchor.constraint(
greaterThanOrEqualTo: mainContentContainer.trailingAnchor
)
infoButtonConstraint.priority = .defaultLow
mainContentContainer.addConstrainedSubviews([titleLabel, infoButton, detailTitleLabel]) {
switch style {
case .subtitle:
titleLabel.pinEdgesToSuperview(.init([.top(0), .leading(0)]))
titleLabel.trailingAnchor
.constraint(lessThanOrEqualTo: mainContentContainer.trailingAnchor)
detailTitleLabel.pinEdgesToSuperview(.all().excluding([.top, .trailing]))
detailTitleLabel.trailingAnchor
.constraint(lessThanOrEqualTo: mainContentContainer.trailingAnchor)
detailTitleLabel.topAnchor.constraint(equalTo: titleLabel.bottomAnchor)
infoButtonConstraint
default:
titleLabel.pinEdgesToSuperview(.all().excluding(.trailing))
detailTitleLabel.pinEdgesToSuperview(.all().excluding(.leading))
detailTitleLabel.leadingAnchor.constraint(greaterThanOrEqualTo: infoButton.trailingAnchor)
}
titleLabel.trailingAnchor.constraint(
equalTo: infoButton.leadingAnchor,
constant: UIMetrics.TableView.infoButtonSpacing
)
infoButton.centerYAnchor.constraint(equalTo: titleLabel.centerYAnchor)
}
contentView.addConstrainedSubviews([leftContentContainer, mainContentContainer, rightContentContainer]) {
mainContentContainer.pinEdgesToSuperviewMargins(.all().excluding([.leading, .trailing]))
leftContentContainer.pinEdgesToSuperviewMargins(.all().excluding([.leading, .trailing]))
leftContentContainer.pinEdgesToSuperview(.init([.leading(16)]))
leftContentContainer.trailingAnchor.constraint(equalTo: mainContentContainer.leadingAnchor)
rightContentContainer.pinEdgesToSuperview(.all().excluding(.leading))
rightContentContainer.leadingAnchor.constraint(equalTo: mainContentContainer.trailingAnchor)
rightContentContainer.widthAnchor.constraint(
greaterThanOrEqualToConstant: UIMetrics.TableView.cellIndentationWidth
)
}
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func prepareForReuse() {
super.prepareForReuse()
infoButton.isHidden = true
removeLeadingView()
removeTrailingView()
setLayoutMargins()
}
func applySubCellStyling() {
contentView.layoutMargins.left = subCellLeadingIndentation
backgroundView?.backgroundColor = UIColor.Cell.Background.indentationLevelZero
}
func setLeadingView(superviewProvider: (UIView) -> Void) {
removeLeadingView()
superviewProvider(leftContentContainer)
}
func removeLeadingView() {
leftContentContainer.subviews.forEach { $0.removeFromSuperview() }
}
func setTrailingView(superviewProvider: (UIView) -> Void) {
removeTrailingView()
superviewProvider(rightContentContainer)
}
func removeTrailingView() {
rightContentContainer.subviews.forEach { $0.removeFromSuperview() }
}
@objc private func handleInfoButton(_ sender: UIControl) {
infoButtonHandler?()
}
private func setLayoutMargins() {
// Set layout margins for standard acceessories added into the cell (reorder control, etc..)
directionalLayoutMargins = UIMetrics.SettingsCell.defaultLayoutMargins
// Set layout margins for cell content
contentView.directionalLayoutMargins = UIMetrics.SettingsCell.defaultLayoutMargins
}
}
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