mastodon-ios/Mastodon/Scene/Settings/About Mastodon/AboutViewController.swift

137 lines
5.1 KiB
Swift

// Copyright © 2023 Mastodon gGmbH. All rights reserved.
import UIKit
import MastodonCore
import MastodonLocalization
import MastodonAsset
protocol AboutViewControllerDelegate: AnyObject {
func didSelect(_ viewController: AboutViewController, entry: AboutSettingsEntry)
}
class AboutViewController: UIViewController {
let tableView: UITableView
let tableFooterView: UIView
let versionLabel: UILabel
private(set) var sections: [AboutSettingsSection] = []
var tableViewDataSource: UITableViewDiffableDataSource<AboutSettingsSection, AboutSettingsEntry>?
weak var delegate: AboutViewControllerDelegate?
init() {
tableView = UITableView(frame: .zero, style: .insetGrouped)
tableView.translatesAutoresizingMaskIntoConstraints = false
tableView.register(AboutMastodonTableViewCell.self, forCellReuseIdentifier: AboutMastodonTableViewCell.reuseIdentifier)
versionLabel = UILabel()
versionLabel.translatesAutoresizingMaskIntoConstraints = false
versionLabel.text = "Mastodon for iOS v\(UIApplication.appVersion()) (\(UIApplication.appBuild()))"
versionLabel.font = UIFontMetrics(forTextStyle: .footnote).scaledFont(for: .systemFont(ofSize: 12, weight: .regular))
versionLabel.textColor = Asset.Colors.Label.secondary.color
versionLabel.numberOfLines = 0
versionLabel.textAlignment = .center
tableFooterView = UIView()
tableFooterView.addSubview(versionLabel)
super.init(nibName: nil, bundle: nil)
let tableViewDataSource = UITableViewDiffableDataSource<AboutSettingsSection, AboutSettingsEntry>(tableView: tableView) { [weak self] tableView, indexPath, itemIdentifier in
guard let self,
let cell = tableView.dequeueReusableCell(withIdentifier: AboutMastodonTableViewCell.reuseIdentifier, for: indexPath) as? AboutMastodonTableViewCell else { fatalError("WTF?? Wrong Cell dude!") }
let entry = self.sections[indexPath.section].entries[indexPath.row]
cell.configure(with: entry)
return cell
}
tableView.delegate = self
tableView.dataSource = tableViewDataSource
tableView.tableFooterView = tableFooterView
self.tableViewDataSource = tableViewDataSource
view.addSubview(tableView)
view.backgroundColor = .systemGroupedBackground
title = L10n.Scene.Settings.AboutMastodon.title
setupConstraints()
}
required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") }
override func viewDidLoad() {
super.viewDidLoad()
update(with:
[AboutSettingsSection(entries: [
.evenMoreSettings,
.contributeToMastodon,
.privacyPolicy
]),
AboutSettingsSection(entries: [
.clearMediaCache(AppContext.shared.currentDiskUsage())
])]
)
}
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
guard let footerView = self.tableView.tableFooterView else {
return
}
let width = self.tableView.bounds.size.width
let size = footerView.systemLayoutSizeFitting(CGSize(width: width, height: UIView.layoutFittingCompressedSize.height))
if footerView.frame.size.height != size.height {
footerView.frame.size.height = size.height
self.tableView.tableFooterView = footerView
}
}
private func setupConstraints() {
let constraints = [
tableView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor),
tableView.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor),
view.trailingAnchor.constraint(equalTo: tableView.safeAreaLayoutGuide.trailingAnchor),
view.bottomAnchor.constraint(equalTo: tableView.safeAreaLayoutGuide.bottomAnchor),
versionLabel.topAnchor.constraint(equalTo: tableFooterView.topAnchor, constant: 8),
versionLabel.leadingAnchor.constraint(equalTo: tableFooterView.leadingAnchor),
tableFooterView.trailingAnchor.constraint(equalTo: versionLabel.trailingAnchor),
tableFooterView.bottomAnchor.constraint(equalTo: versionLabel.bottomAnchor, constant: 16),
]
NSLayoutConstraint.activate(constraints)
}
func update(with sections: [AboutSettingsSection]) {
self.sections = sections
var snapshot = NSDiffableDataSourceSnapshot<AboutSettingsSection, AboutSettingsEntry>()
for section in sections {
snapshot.appendSections([section])
snapshot.appendItems(section.entries)
}
tableViewDataSource?.apply(snapshot, animatingDifferences: false)
}
}
extension AboutViewController: UITableViewDelegate {
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let entry = sections[indexPath.section].entries[indexPath.row]
delegate?.didSelect(self, entry: entry)
tableView.deselectRow(at: indexPath, animated: true)
}
}