mastodon-ios/Mastodon/Scene/Onboarding/ServerRules/MastodonServerRulesViewCont...

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//
// MastodonServerRulesViewController.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-2-22.
//
import os.log
import UIKit
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import Combine
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final class MastodonServerRulesViewController: UIViewController, NeedsDependency {
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var disposeBag = Set<AnyCancellable>()
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weak var context: AppContext! { willSet { precondition(!isViewLoaded) } }
weak var coordinator: SceneCoordinator! { willSet { precondition(!isViewLoaded) } }
var viewModel: MastodonServerRulesViewModel!
let largeTitleLabel: UILabel = {
let label = UILabel()
label.font = UIFontMetrics(forTextStyle: .largeTitle).scaledFont(for: .systemFont(ofSize: 34, weight: .bold))
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label.textColor = .label
label.text = L10n.Scene.ServerRules.title
return label
}()
private(set) lazy var subtitleLabel: UILabel = {
let label = UILabel()
label.font = UIFontMetrics(forTextStyle: .title1).scaledFont(for: UIFont.systemFont(ofSize: 20))
label.textColor = .secondaryLabel
label.text = L10n.Scene.ServerRules.subtitle(viewModel.domain)
label.numberOfLines = 0
return label
}()
let rulesLabel: UILabel = {
let label = UILabel()
label.font = .preferredFont(forTextStyle: .body)
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label.textColor = .black
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label.text = "Rules"
label.numberOfLines = 0
return label
}()
let bottonContainerView: UIView = {
let view = UIView()
view.backgroundColor = Asset.Colors.Background.onboardingBackground.color
return view
}()
private(set) lazy var bottomPromptLabel: UILabel = {
let label = UILabel()
label.font = .preferredFont(forTextStyle: .body)
label.textColor = .label
label.text = L10n.Scene.ServerRules.prompt(viewModel.domain)
label.numberOfLines = 0
return label
}()
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let confirmButton: PrimaryActionButton = {
let button = PrimaryActionButton()
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button.titleLabel?.font = .preferredFont(forTextStyle: .headline)
button.setTitleColor(.white, for: .normal)
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button.setTitle(L10n.Scene.ServerRules.Button.confirm, for: .normal)
return button
}()
let scrollView: UIScrollView = {
let scrollView = UIScrollView()
scrollView.alwaysBounceVertical = true
scrollView.showsVerticalScrollIndicator = false
return scrollView
}()
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deinit {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
}
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}
extension MastodonServerRulesViewController {
override func viewDidLoad() {
super.viewDidLoad()
setupOnboardingAppearance()
defer { setupNavigationBarBackgroundView() }
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bottonContainerView.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(bottonContainerView)
NSLayoutConstraint.activate([
view.bottomAnchor.constraint(equalTo: bottonContainerView.bottomAnchor),
bottonContainerView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
bottonContainerView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
])
bottonContainerView.preservesSuperviewLayoutMargins = true
defer {
view.bringSubviewToFront(bottonContainerView)
}
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confirmButton.translatesAutoresizingMaskIntoConstraints = false
bottonContainerView.addSubview(confirmButton)
NSLayoutConstraint.activate([
bottonContainerView.layoutMarginsGuide.bottomAnchor.constraint(equalTo: confirmButton.bottomAnchor, constant: MastodonServerRulesViewController.viewBottomPaddingHeight),
confirmButton.leadingAnchor.constraint(equalTo: bottonContainerView.readableContentGuide.leadingAnchor, constant: MastodonServerRulesViewController.actionButtonMargin),
bottonContainerView.readableContentGuide.trailingAnchor.constraint(equalTo: confirmButton.trailingAnchor, constant: MastodonServerRulesViewController.actionButtonMargin),
confirmButton.heightAnchor.constraint(equalToConstant: MastodonServerRulesViewController.actionButtonHeight).priority(.defaultHigh),
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])
bottomPromptLabel.translatesAutoresizingMaskIntoConstraints = false
bottonContainerView.addSubview(bottomPromptLabel)
NSLayoutConstraint.activate([
bottomPromptLabel.topAnchor.constraint(equalTo: bottonContainerView.topAnchor, constant: 20),
bottomPromptLabel.leadingAnchor.constraint(equalTo: bottonContainerView.readableContentGuide.leadingAnchor),
bottomPromptLabel.trailingAnchor.constraint(equalTo: bottonContainerView.readableContentGuide.trailingAnchor),
confirmButton.topAnchor.constraint(equalTo: bottomPromptLabel.bottomAnchor, constant: 20),
])
scrollView.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(scrollView)
NSLayoutConstraint.activate([
scrollView.frameLayoutGuide.topAnchor.constraint(equalTo: view.topAnchor),
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scrollView.frameLayoutGuide.leadingAnchor.constraint(equalTo: view.readableContentGuide.leadingAnchor),
scrollView.frameLayoutGuide.trailingAnchor.constraint(equalTo: view.readableContentGuide.trailingAnchor),
scrollView.frameLayoutGuide.bottomAnchor.constraint(equalTo: view.bottomAnchor),
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scrollView.frameLayoutGuide.widthAnchor.constraint(equalTo: scrollView.contentLayoutGuide.widthAnchor),
])
let stackView = UIStackView()
stackView.axis = .vertical
stackView.distribution = .fill
stackView.spacing = 10
stackView.layoutMargins = UIEdgeInsets(top: 20, left: 0, bottom: 20, right: 0)
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stackView.addArrangedSubview(largeTitleLabel)
stackView.addArrangedSubview(subtitleLabel)
stackView.addArrangedSubview(rulesLabel)
stackView.translatesAutoresizingMaskIntoConstraints = false
scrollView.addSubview(stackView)
NSLayoutConstraint.activate([
stackView.topAnchor.constraint(equalTo: scrollView.contentLayoutGuide.topAnchor),
stackView.leadingAnchor.constraint(equalTo: scrollView.contentLayoutGuide.leadingAnchor),
stackView.trailingAnchor.constraint(equalTo: scrollView.contentLayoutGuide.trailingAnchor),
scrollView.contentLayoutGuide.bottomAnchor.constraint(equalTo: stackView.bottomAnchor),
])
rulesLabel.attributedText = viewModel.rulesAttributedString
confirmButton.addTarget(self, action: #selector(MastodonServerRulesViewController.confirmButtonPressed(_:)), for: .touchUpInside)
}
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
updateScrollViewContentInset()
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}
override func viewSafeAreaInsetsDidChange() {
super.viewSafeAreaInsetsDidChange()
updateScrollViewContentInset()
}
}
extension MastodonServerRulesViewController {
func updateScrollViewContentInset() {
view.layoutIfNeeded()
scrollView.contentInset.bottom = bottonContainerView.frame.height
scrollView.verticalScrollIndicatorInsets.bottom = bottonContainerView.frame.height
}
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}
extension MastodonServerRulesViewController {
@objc private func confirmButtonPressed(_ sender: UIButton) {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
let viewModel = MastodonRegisterViewModel(domain: self.viewModel.domain, authenticateInfo: self.viewModel.authenticateInfo, instance: self.viewModel.instance, applicationToken: self.viewModel.applicationToken)
self.coordinator.present(scene: .mastodonRegister(viewModel: viewModel), from: self, transition: .show)
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}
}
// MARK: - OnboardingViewControllerAppearance
extension MastodonServerRulesViewController: OnboardingViewControllerAppearance { }
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#if canImport(SwiftUI) && DEBUG
import SwiftUI
struct ServerRulesViewController_Previews: PreviewProvider {
static var previews: some View {
UIViewControllerPreview {
let viewController = MastodonServerRulesViewController()
return viewController
}
.previewLayout(.fixed(width: 375, height: 800))
}
}
#endif