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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
import Foundation
import UIKit
import ComponentLibrary
import Common
public struct ToSBottomSheetViewModel {
let titleLabel: String
let titleLabelA11yId: String
let descriptionText: String
let descriptionTextA11yId: String
let linkButtonLabel: String
let linkButtonURL: URL?
let allowButtonTitle: String
let allowButtonA11yId: String
let allowButtonA11yLabel: String
let cancelButtonTitle: String
let cancelButtonA11yId: String
let cancelButtonA11yLabel: String
let onRequestOpenURL: ((URL?) -> Void)?
let onAllowButtonPressed: (() -> Void)?
let onDismiss: (() -> Void)?
public init(
titleLabel: String,
titleLabelA11yId: String,
descriptionText: String,
descriptionTextA11yId: String,
linkButtonLabel: String,
linkButtonURL: URL?,
allowButtonTitle: String,
allowButtonA11yId: String,
allowButtonA11yLabel: String,
cancelButtonTitle: String,
cancelButtonA11yId: String,
cancelButtonA11yLabel: String,
onRequestOpenURL: ((URL?) -> Void)?,
onAllowButtonPressed: (() -> Void)?,
onDismiss: (() -> Void)?
) {
self.titleLabel = titleLabel
self.titleLabelA11yId = titleLabelA11yId
self.descriptionText = descriptionText
self.descriptionTextA11yId = descriptionTextA11yId
self.linkButtonLabel = linkButtonLabel
self.linkButtonURL = linkButtonURL
self.onAllowButtonPressed = onAllowButtonPressed
self.onRequestOpenURL = onRequestOpenURL
self.allowButtonTitle = allowButtonTitle
self.allowButtonA11yId = allowButtonA11yId
self.allowButtonA11yLabel = allowButtonA11yLabel
self.cancelButtonTitle = cancelButtonTitle
self.cancelButtonA11yId = cancelButtonA11yId
self.cancelButtonA11yLabel = cancelButtonA11yLabel
self.onDismiss = onDismiss
}
}
public class ToSBottomSheetViewController: UIViewController,
UITextViewDelegate,
BottomSheetChild,
Notifiable,
Themeable {
private struct UX {
static let contentHorizontalPadding: CGFloat = 29.0
static let titleLabelTopPadding: CGFloat = 30.0
static let descriptionLabelTopPadding: CGFloat = 20.0
static let allowButtonTopPadding: CGFloat = 20.0
static let cancelButtonTopPadding: CGFloat = 10.0
static let cancelButtonBottomPadding: CGFloat = 16.0
}
public var themeManager: any Common.ThemeManager
public var themeListenerCancellable: Any?
public var notificationCenter: any Common.NotificationProtocol
public var currentWindowUUID: Common.WindowUUID?
private let viewModel: ToSBottomSheetViewModel
public weak var delegate: BottomSheetDelegate?
private let titleLabel: UILabel = .build {
$0.textAlignment = .center
$0.font = FXFontStyles.Bold.headline.scaledFont()
$0.numberOfLines = 0
$0.adjustsFontForContentSizeCategory = true
}
private let descriptionTextView: UITextView = .build {
$0.textAlignment = .center
$0.isEditable = false
$0.isScrollEnabled = false
$0.adjustsFontForContentSizeCategory = true
}
private let allowButton: PrimaryRoundedButton = .build()
private let cancelButton: SecondaryRoundedButton = .build()
private var titleLabelTopConstraint: NSLayoutConstraint?
public init(
viewModel: ToSBottomSheetViewModel,
themeManager: any Common.ThemeManager = AppContainer.shared.resolve(),
notificationCenter: any Common.NotificationProtocol = NotificationCenter.default,
windowUUID: WindowUUID
) {
self.viewModel = viewModel
self.themeManager = themeManager
self.notificationCenter = notificationCenter
self.currentWindowUUID = windowUUID
super.init(nibName: nil, bundle: nil)
startObservingNotifications(
withNotificationCenter: notificationCenter,
forObserver: self,
observing: [UIContentSizeCategory.didChangeNotification]
)
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override public func viewDidLoad() {
super.viewDidLoad()
configure()
setupLayout()
listenForThemeChanges(withNotificationCenter: notificationCenter)
applyTheme()
}
private func configure() {
titleLabel.text = viewModel.titleLabel
titleLabel.accessibilityLabel = viewModel.titleLabel
titleLabel.accessibilityIdentifier = viewModel.titleLabelA11yId
let description = NSMutableAttributedString(string: "\(viewModel.descriptionText) \(viewModel.linkButtonLabel)")
let fullTextRange = NSRange(location: 0, length: description.length)
let linkTextRange = (description.string as NSString).range(of: viewModel.linkButtonLabel)
description.addAttributes(
[
.link: viewModel.linkButtonURL as Any,
.underlineStyle: NSUnderlineStyle.single.rawValue,
],
range: linkTextRange
)
description.addAttribute(.font, value: FXFontStyles.Regular.subheadline.scaledFont(), range: fullTextRange)
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = .center
description.addAttribute(.paragraphStyle, value: paragraphStyle, range: fullTextRange)
descriptionTextView.delegate = self
descriptionTextView.attributedText = description
descriptionTextView.accessibilityIdentifier = viewModel.descriptionTextA11yId
allowButton.configure(
viewModel: PrimaryRoundedButtonViewModel(
title: viewModel.allowButtonTitle,
a11yIdentifier: viewModel.allowButtonA11yId
)
)
allowButton.accessibilityLabel = viewModel.allowButtonA11yLabel
allowButton.addAction(UIAction(handler: { [weak self] _ in
self?.viewModel.onAllowButtonPressed?()
}), for: .touchUpInside)
cancelButton.configure(
viewModel: SecondaryRoundedButtonViewModel(
title: viewModel.cancelButtonTitle,
a11yIdentifier: viewModel.cancelButtonA11yId
)
)
cancelButton.accessibilityLabel = viewModel.cancelButtonA11yLabel
cancelButton.addAction(UIAction(handler: { [weak self] _ in
self?.dismiss(animated: true)
}), for: .touchUpInside)
applyTheme()
}
private func setupLayout() {
view.addSubviews(titleLabel, descriptionTextView, allowButton, cancelButton)
titleLabelTopConstraint = titleLabel.topAnchor.constraint(equalTo: view.topAnchor,
constant: UX.titleLabelTopPadding)
titleLabelTopConstraint?.isActive = true
NSLayoutConstraint.activate([
titleLabel.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: UX.contentHorizontalPadding),
titleLabel.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -UX.contentHorizontalPadding),
descriptionTextView.topAnchor.constraint(equalTo: titleLabel.bottomAnchor,
constant: UX.descriptionLabelTopPadding),
descriptionTextView.leadingAnchor.constraint(equalTo: view.leadingAnchor,
constant: UX.contentHorizontalPadding),
descriptionTextView.trailingAnchor.constraint(equalTo: view.trailingAnchor,
constant: -UX.contentHorizontalPadding),
allowButton.topAnchor.constraint(equalTo: descriptionTextView.bottomAnchor, constant: UX.allowButtonTopPadding),
allowButton.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: UX.contentHorizontalPadding),
allowButton.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -UX.contentHorizontalPadding),
cancelButton.topAnchor.constraint(equalTo: allowButton.bottomAnchor, constant: UX.cancelButtonTopPadding),
cancelButton.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: UX.contentHorizontalPadding),
cancelButton.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -UX.contentHorizontalPadding),
cancelButton.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor,
constant: -UX.cancelButtonBottomPadding)
])
updateDynamicFontSize()
}
private func updateDynamicFontSize() {
let bottomSheetHeaderHeight = delegate?.getBottomSheetHeaderHeight() ?? 0.0
titleLabelTopConstraint?.constant = bottomSheetHeaderHeight + UX.titleLabelTopPadding
}
public func willDismiss() {
viewModel.onDismiss?()
}
override public func dismiss(animated flag: Bool, completion: (() -> Void)? = nil) {
if let delegate {
delegate.dismissSheetViewController(completion: completion)
} else {
super.dismiss(animated: flag, completion: completion)
}
}
// MARK: - Notifiable
public func handleNotifications(_ notification: Notification) {
guard notification.name == UIContentSizeCategory.didChangeNotification else { return }
updateDynamicFontSize()
}
// MARK: - UITextViewDelegate
public func textView(_ textView: UITextView, shouldInteractWith URL: URL, in characterRange: NSRange) -> Bool {
viewModel.onRequestOpenURL?(URL)
dismiss(animated: true)
return false
}
public func applyTheme() {
let theme = themeManager.getCurrentTheme(for: currentWindowUUID)
titleLabel.textColor = theme.colors.textPrimary
descriptionTextView.textColor = theme.colors.textSecondary
descriptionTextView.backgroundColor = .clear
allowButton.applyTheme(theme: theme)
cancelButton.applyTheme(theme: theme)
}
}