mirror of
https://github.com/metabolist/metatext.git
synced 2024-11-22 16:21:00 +00:00
505 lines
20 KiB
Swift
505 lines
20 KiB
Swift
// Copyright © 2020 Metabolist. All rights reserved.
|
|
|
|
import AVKit
|
|
import Combine
|
|
import Mastodon
|
|
import SafariServices
|
|
import SwiftUI
|
|
import ViewModels
|
|
|
|
// swiftlint:disable file_length
|
|
class TableViewController: UITableViewController {
|
|
var transitionViewTag = -1
|
|
|
|
private let viewModel: CollectionViewModel
|
|
private let rootViewModel: RootViewModel
|
|
private let loadingTableFooterView = LoadingTableFooterView()
|
|
private let webfingerIndicatorView = WebfingerIndicatorView()
|
|
@Published private var loading = false
|
|
private var visibleLoadMoreViews = Set<LoadMoreView>()
|
|
private var cancellables = Set<AnyCancellable>()
|
|
private var cellHeightCaches = [CGFloat: [CollectionItem: CGFloat]]()
|
|
private var shouldKeepPlayingVideoAfterDismissal = false
|
|
private let insetBottom: Bool
|
|
private weak var parentNavigationController: UINavigationController?
|
|
|
|
private lazy var dataSource: TableViewDataSource = {
|
|
.init(tableView: tableView, viewModelProvider: viewModel.viewModel(indexPath:))
|
|
}()
|
|
|
|
init(viewModel: CollectionViewModel,
|
|
rootViewModel: RootViewModel,
|
|
insetBottom: Bool = true,
|
|
parentNavigationController: UINavigationController? = nil) {
|
|
self.viewModel = viewModel
|
|
self.rootViewModel = rootViewModel
|
|
self.insetBottom = insetBottom
|
|
self.parentNavigationController = parentNavigationController
|
|
|
|
super.init(style: .plain)
|
|
}
|
|
|
|
@available(*, unavailable)
|
|
required init?(coder: NSCoder) {
|
|
fatalError("init(coder:) has not been implemented")
|
|
}
|
|
|
|
override func viewDidLoad() {
|
|
super.viewDidLoad()
|
|
|
|
tableView.dataSource = dataSource
|
|
tableView.cellLayoutMarginsFollowReadableWidth = true
|
|
tableView.tableFooterView = UIView()
|
|
tableView.contentInset.bottom = bottomInset
|
|
|
|
if viewModel.canRefresh {
|
|
refreshControl = UIRefreshControl()
|
|
refreshControl?.addAction(
|
|
UIAction { [weak self] _ in
|
|
self?.refreshIfAble() },
|
|
for: .valueChanged)
|
|
}
|
|
|
|
view.addSubview(webfingerIndicatorView)
|
|
webfingerIndicatorView.translatesAutoresizingMaskIntoConstraints = false
|
|
|
|
NSLayoutConstraint.activate([
|
|
webfingerIndicatorView.centerXAnchor.constraint(equalTo: view.safeAreaLayoutGuide.centerXAnchor),
|
|
webfingerIndicatorView.centerYAnchor.constraint(equalTo: view.safeAreaLayoutGuide.centerYAnchor)
|
|
])
|
|
|
|
setupViewModelBindings()
|
|
|
|
viewModel.request(maxId: nil, minId: nil, search: nil)
|
|
}
|
|
|
|
override func viewWillAppear(_ animated: Bool) {
|
|
super.viewWillAppear(animated)
|
|
|
|
refreshIfAble()
|
|
}
|
|
|
|
override func scrollViewDidScroll(_ scrollView: UIScrollView) {
|
|
guard scrollView.isDragging else { return }
|
|
|
|
let up = scrollView.panGestureRecognizer.translation(in: scrollView.superview).y > 0
|
|
|
|
for loadMoreView in visibleLoadMoreViews {
|
|
loadMoreView.directionChanged(up: up)
|
|
}
|
|
}
|
|
|
|
override func scrollViewDidEndDragging(_ scrollView: UIScrollView, willDecelerate decelerate: Bool) {
|
|
for loadMoreView in visibleLoadMoreViews {
|
|
loadMoreView.finalizeDirectionChange()
|
|
}
|
|
}
|
|
|
|
override func tableView(_ tableView: UITableView,
|
|
willDisplay cell: UITableViewCell,
|
|
forRowAt indexPath: IndexPath) {
|
|
guard let item = dataSource.itemIdentifier(for: indexPath) else { return }
|
|
|
|
var heightCache = cellHeightCaches[tableView.frame.width] ?? [CollectionItem: CGFloat]()
|
|
|
|
heightCache[item] = cell.frame.height
|
|
cellHeightCaches[tableView.frame.width] = heightCache
|
|
|
|
if !loading,
|
|
indexPath.section == dataSource.numberOfSections(in: tableView) - 1,
|
|
indexPath.row == dataSource.tableView(tableView, numberOfRowsInSection: indexPath.section) - 1 {
|
|
viewModel.requestNextPage(fromIndexPath: indexPath)
|
|
}
|
|
|
|
if let loadMoreView = cell.contentView as? LoadMoreView {
|
|
visibleLoadMoreViews.insert(loadMoreView)
|
|
}
|
|
}
|
|
|
|
override func tableView(_ tableView: UITableView,
|
|
didEndDisplaying cell: UITableViewCell,
|
|
forRowAt indexPath: IndexPath) {
|
|
if let loadMoreView = cell.contentView as? LoadMoreView {
|
|
visibleLoadMoreViews.remove(loadMoreView)
|
|
}
|
|
}
|
|
|
|
override func tableView(_ tableView: UITableView, estimatedHeightForRowAt indexPath: IndexPath) -> CGFloat {
|
|
guard let item = dataSource.itemIdentifier(for: indexPath) else { return UITableView.automaticDimension }
|
|
|
|
return cellHeightCaches[tableView.frame.width]?[item]
|
|
?? item.estimatedHeight(width: tableView.readableContentGuide.layoutFrame.width,
|
|
identityContext: viewModel.identityContext)
|
|
}
|
|
|
|
override func tableView(_ tableView: UITableView, shouldHighlightRowAt indexPath: IndexPath) -> Bool {
|
|
viewModel.canSelect(indexPath: indexPath)
|
|
}
|
|
|
|
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
|
|
tableView.deselectRow(at: indexPath, animated: true)
|
|
|
|
viewModel.select(indexPath: indexPath)
|
|
}
|
|
|
|
override func viewDidLayoutSubviews() {
|
|
super.viewDidLayoutSubviews()
|
|
|
|
sizeTableHeaderFooterViews()
|
|
}
|
|
}
|
|
|
|
extension TableViewController {
|
|
func report(reportViewModel: ReportViewModel) {
|
|
let reportViewController = ReportViewController(viewModel: reportViewModel)
|
|
let navigationController = UINavigationController(rootViewController: reportViewController)
|
|
|
|
present(navigationController, animated: true)
|
|
}
|
|
|
|
func sizeTableHeaderFooterViews() {
|
|
// https://useyourloaf.com/blog/variable-height-table-view-header/
|
|
if let headerView = tableView.tableHeaderView {
|
|
let size = headerView.systemLayoutSizeFitting(
|
|
CGSize(width: tableView.frame.width, height: .greatestFiniteMagnitude),
|
|
withHorizontalFittingPriority: .required,
|
|
verticalFittingPriority: .fittingSizeLevel)
|
|
|
|
if headerView.frame.size.height != size.height {
|
|
headerView.frame.size.height = size.height
|
|
tableView.tableHeaderView = headerView
|
|
tableView.layoutIfNeeded()
|
|
}
|
|
|
|
view.insertSubview(webfingerIndicatorView, aboveSubview: headerView)
|
|
}
|
|
|
|
if let footerView = tableView.tableFooterView {
|
|
let size = footerView.systemLayoutSizeFitting(
|
|
CGSize(width: tableView.frame.width, height: .greatestFiniteMagnitude),
|
|
withHorizontalFittingPriority: .required,
|
|
verticalFittingPriority: .fittingSizeLevel)
|
|
|
|
if footerView.frame.size.height != size.height {
|
|
footerView.frame.size.height = size.height
|
|
tableView.tableFooterView = footerView
|
|
tableView.layoutIfNeeded()
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
extension TableViewController: AVPlayerViewControllerDelegate {
|
|
func playerViewController(
|
|
_ playerViewController: AVPlayerViewController,
|
|
willEndFullScreenPresentationWithAnimationCoordinator coordinator: UIViewControllerTransitionCoordinator) {
|
|
try? AVAudioSession.sharedInstance().setCategory(.ambient, mode: .default)
|
|
playerViewController.player?.isMuted = true
|
|
|
|
coordinator.animate(alongsideTransition: nil) { _ in
|
|
if self.shouldKeepPlayingVideoAfterDismissal {
|
|
playerViewController.player?.play()
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
extension TableViewController: ZoomAnimatorDelegate {
|
|
func transitionWillStartWith(zoomAnimator: ZoomAnimator) {
|
|
view.layoutIfNeeded()
|
|
|
|
guard let imageViewController = (presentedViewController as? ImageNavigationController)?.currentViewController
|
|
else { return }
|
|
|
|
if imageViewController.playerView.tag != 0 {
|
|
transitionViewTag = imageViewController.playerView.tag
|
|
} else if imageViewController.imageView.tag != 0 {
|
|
transitionViewTag = imageViewController.imageView.tag
|
|
}
|
|
}
|
|
|
|
func transitionDidEndWith(zoomAnimator: ZoomAnimator) {
|
|
|
|
}
|
|
|
|
func referenceView(for zoomAnimator: ZoomAnimator) -> UIView? {
|
|
view.viewWithTag(transitionViewTag)
|
|
}
|
|
|
|
func referenceViewFrameInTransitioningView(for zoomAnimator: ZoomAnimator) -> CGRect? {
|
|
guard let referenceView = referenceView(for: zoomAnimator) else { return nil }
|
|
|
|
return parent?.view.convert(referenceView.frame, from: referenceView.superview)
|
|
}
|
|
}
|
|
|
|
private extension TableViewController {
|
|
static let bottomInset: CGFloat = .newStatusButtonDimension + .defaultSpacing * 4
|
|
static let loadingFooterDebounceInterval: TimeInterval = 0.5
|
|
|
|
var bottomInset: CGFloat { insetBottom ? Self.bottomInset : 0 }
|
|
|
|
func setupViewModelBindings() {
|
|
viewModel.title.sink { [weak self] in self?.navigationItem.title = $0 }.store(in: &cancellables)
|
|
|
|
viewModel.titleLocalizationComponents.sink { [weak self] in
|
|
guard let key = $0.first else { return }
|
|
|
|
self?.navigationItem.title = String(
|
|
format: NSLocalizedString(key, comment: ""),
|
|
arguments: Array($0.suffix(from: 1)))
|
|
}
|
|
.store(in: &cancellables)
|
|
|
|
viewModel.updates.sink { [weak self] in self?.update($0) }.store(in: &cancellables)
|
|
|
|
viewModel.events.receive(on: DispatchQueue.main)
|
|
.sink { [weak self] in self?.handle(event: $0) }
|
|
.store(in: &cancellables)
|
|
|
|
viewModel.expandAll.receive(on: DispatchQueue.main)
|
|
.sink { [weak self] in self?.set(expandAllState: $0) }
|
|
.store(in: &cancellables)
|
|
|
|
viewModel.loading.receive(on: DispatchQueue.main).assign(to: &$loading)
|
|
|
|
$loading.debounce(
|
|
for: .seconds(Self.loadingFooterDebounceInterval),
|
|
scheduler: DispatchQueue.main)
|
|
.sink { [weak self] in
|
|
guard let self = self else { return }
|
|
|
|
let refreshControlVisibile = self.refreshControl?.isRefreshing ?? false
|
|
|
|
if !$0, refreshControlVisibile {
|
|
self.refreshControl?.endRefreshing()
|
|
}
|
|
|
|
self.tableView.tableFooterView = $0 && !refreshControlVisibile ? self.loadingTableFooterView : UIView()
|
|
self.sizeTableHeaderFooterViews()
|
|
}
|
|
.store(in: &cancellables)
|
|
|
|
viewModel.alertItems
|
|
.compactMap { $0 }
|
|
.sink { [weak self] in self?.present(alertItem: $0) }
|
|
.store(in: &cancellables)
|
|
|
|
tableView.publisher(for: \.contentOffset)
|
|
.compactMap { [weak self] _ in self?.tableView.indexPathsForVisibleRows?.first }
|
|
.sink { [weak self] in self?.viewModel.viewedAtTop(indexPath: $0) }
|
|
.store(in: &cancellables)
|
|
|
|
NotificationCenter.default.publisher(for: UIScene.willEnterForegroundNotification)
|
|
.merge(with: NotificationCenter.default.publisher(for: NewStatusViewController.newStatusPostedNotification))
|
|
.sink { [weak self] _ in self?.refreshIfAble() }
|
|
.store(in: &cancellables)
|
|
}
|
|
|
|
func update(_ update: CollectionUpdate) {
|
|
let positionMaintenanceOffset: CGFloat
|
|
|
|
if let itemId = update.maintainScrollPositionItemId,
|
|
let indexPath = dataSource.indexPath(itemId: itemId) {
|
|
positionMaintenanceOffset = tableView.rectForRow(at: indexPath).origin.y
|
|
- tableView.safeAreaInsets.top - tableView.contentOffset.y
|
|
} else {
|
|
positionMaintenanceOffset = 0
|
|
}
|
|
|
|
self.dataSource.apply(update.sections.snapshot(), animatingDifferences: false) { [weak self] in
|
|
guard let self = self else { return }
|
|
|
|
if let itemId = update.maintainScrollPositionItemId,
|
|
let indexPath = self.dataSource.indexPath(itemId: itemId) {
|
|
if update.shouldAdjustContentInset {
|
|
self.tableView.contentInset.bottom = max(
|
|
self.tableView.safeAreaLayoutGuide.layoutFrame.height
|
|
- self.tableView.rectForRow(at: indexPath).height,
|
|
self.bottomInset)
|
|
}
|
|
|
|
self.tableView.scrollToRow(at: indexPath, at: .top, animated: false)
|
|
self.tableView.contentOffset.y -= positionMaintenanceOffset
|
|
}
|
|
}
|
|
}
|
|
|
|
func handle(event: CollectionItemEvent) {
|
|
switch event {
|
|
case .ignorableOutput:
|
|
break
|
|
case let .share(url):
|
|
share(url: url)
|
|
case let .navigation(navigation):
|
|
handle(navigation: navigation)
|
|
case let .attachment(attachmentViewModel, statusViewModel):
|
|
present(attachmentViewModel: attachmentViewModel, statusViewModel: statusViewModel)
|
|
case let .compose(inReplyToViewModel, redraft):
|
|
compose(inReplyToViewModel: inReplyToViewModel, redraft: redraft)
|
|
case let .confirmDelete(statusViewModel, redraft):
|
|
confirmDelete(statusViewModel: statusViewModel, redraft: redraft)
|
|
case let .report(reportViewModel):
|
|
report(reportViewModel: reportViewModel)
|
|
case let .accountListEdit(accountViewModel, edit):
|
|
accountListEdit(accountViewModel: accountViewModel, edit: edit)
|
|
}
|
|
}
|
|
|
|
func handle(navigation: Navigation) {
|
|
switch navigation {
|
|
case let .collection(collectionService):
|
|
let vc = TableViewController(
|
|
viewModel: CollectionItemsViewModel(
|
|
collectionService: collectionService,
|
|
identityContext: viewModel.identityContext),
|
|
rootViewModel: rootViewModel,
|
|
parentNavigationController: parentNavigationController)
|
|
|
|
if let parentNavigationController = parentNavigationController {
|
|
parentNavigationController.pushViewController(vc, animated: true)
|
|
} else {
|
|
show(vc, sender: self)
|
|
}
|
|
case let .profile(profileService):
|
|
let vc = ProfileViewController(
|
|
viewModel: ProfileViewModel(
|
|
profileService: profileService,
|
|
identityContext: viewModel.identityContext),
|
|
rootViewModel: rootViewModel,
|
|
identityContext: viewModel.identityContext,
|
|
parentNavigationController: parentNavigationController)
|
|
|
|
if let parentNavigationController = parentNavigationController {
|
|
parentNavigationController.pushViewController(vc, animated: true)
|
|
} else {
|
|
show(vc, sender: self)
|
|
}
|
|
case let .url(url):
|
|
present(SFSafariViewController(url: url), animated: true)
|
|
case .searchScope:
|
|
break
|
|
case .webfingerStart:
|
|
webfingerIndicatorView.startAnimating()
|
|
case .webfingerEnd:
|
|
webfingerIndicatorView.stopAnimating()
|
|
}
|
|
}
|
|
|
|
func present(attachmentViewModel: AttachmentViewModel, statusViewModel: StatusViewModel) {
|
|
switch attachmentViewModel.attachment.type {
|
|
case .audio, .video:
|
|
let playerViewController = AVPlayerViewController()
|
|
let player: AVPlayer
|
|
|
|
if attachmentViewModel.attachment.type == .video {
|
|
player = PlayerCache.shared.player(url: attachmentViewModel.attachment.url)
|
|
} else {
|
|
player = AVPlayer(url: attachmentViewModel.attachment.url)
|
|
}
|
|
|
|
playerViewController.delegate = self
|
|
playerViewController.player = player
|
|
|
|
shouldKeepPlayingVideoAfterDismissal = attachmentViewModel.shouldAutoplay
|
|
|
|
present(playerViewController, animated: true) {
|
|
try? AVAudioSession.sharedInstance().setCategory(.playback, mode: .default)
|
|
player.isMuted = false
|
|
player.play()
|
|
}
|
|
case .image, .gifv:
|
|
let imagePageViewController = ImagePageViewController(
|
|
initiallyVisible: attachmentViewModel,
|
|
statusViewModel: statusViewModel)
|
|
let imageNavigationController = ImageNavigationController(imagePageViewController: imagePageViewController)
|
|
|
|
imageNavigationController.transitionController.fromDelegate = self
|
|
transitionViewTag = attachmentViewModel.tag
|
|
|
|
present(imageNavigationController, animated: true)
|
|
case .unknown:
|
|
break
|
|
}
|
|
}
|
|
|
|
func compose(inReplyToViewModel: StatusViewModel?, redraft: Status?) {
|
|
let newStatusViewModel = rootViewModel.newStatusViewModel(
|
|
identityContext: viewModel.identityContext,
|
|
inReplyTo: inReplyToViewModel,
|
|
redraft: redraft)
|
|
let newStatusViewController = NewStatusViewController(viewModel: newStatusViewModel)
|
|
let navigationController = UINavigationController(rootViewController: newStatusViewController)
|
|
|
|
if UIDevice.current.userInterfaceIdiom == .phone {
|
|
navigationController.modalPresentationStyle = .overFullScreen
|
|
} else {
|
|
navigationController.isModalInPresentation = true
|
|
}
|
|
|
|
present(navigationController, animated: true)
|
|
}
|
|
|
|
func confirmDelete(statusViewModel: StatusViewModel, redraft: Bool) {
|
|
let alertController = UIAlertController(
|
|
title: nil,
|
|
message: redraft
|
|
? NSLocalizedString("status.delete-and-redraft.confirm", comment: "")
|
|
: NSLocalizedString("status.delete.confirm", comment: ""),
|
|
preferredStyle: .alert)
|
|
|
|
let deleteAction = UIAlertAction(
|
|
title: redraft
|
|
? NSLocalizedString("status.delete-and-redraft", comment: "")
|
|
: NSLocalizedString("status.delete", comment: ""),
|
|
style: .destructive) { _ in
|
|
redraft ? statusViewModel.deleteAndRedraft() : statusViewModel.delete()
|
|
}
|
|
let cancelAction = UIAlertAction(title: NSLocalizedString("cancel", comment: ""), style: .cancel) { _ in }
|
|
|
|
alertController.addAction(deleteAction)
|
|
alertController.addAction(cancelAction)
|
|
|
|
present(alertController, animated: true)
|
|
}
|
|
|
|
func accountListEdit(accountViewModel: AccountViewModel, edit: CollectionItemEvent.AccountListEdit) {
|
|
viewModel.applyAccountListEdit(viewModel: accountViewModel, edit: edit)
|
|
}
|
|
|
|
func set(expandAllState: ExpandAllState) {
|
|
switch expandAllState {
|
|
case .hidden:
|
|
navigationItem.rightBarButtonItem = nil
|
|
case .expand:
|
|
navigationItem.rightBarButtonItem = UIBarButtonItem(
|
|
title: NSLocalizedString("status.show-more", comment: ""),
|
|
image: UIImage(systemName: "eye"),
|
|
primaryAction: UIAction { [weak self] _ in self?.viewModel.toggleExpandAll() })
|
|
case .collapse:
|
|
navigationItem.rightBarButtonItem = UIBarButtonItem(
|
|
title: NSLocalizedString("status.show-less", comment: ""),
|
|
image: UIImage(systemName: "eye.slash"),
|
|
primaryAction: UIAction { [weak self] _ in self?.viewModel.toggleExpandAll() })
|
|
}
|
|
}
|
|
|
|
func share(url: URL) {
|
|
let activityViewController = UIActivityViewController(activityItems: [url], applicationActivities: nil)
|
|
|
|
if UIDevice.current.userInterfaceIdiom == .pad {
|
|
guard let sourceView = tableView.viewWithTag(url.hashValue) else { return }
|
|
|
|
activityViewController.popoverPresentationController?.sourceView = sourceView
|
|
}
|
|
|
|
present(activityViewController, animated: true, completion: nil)
|
|
}
|
|
|
|
func refreshIfAble() {
|
|
if viewModel.canRefresh {
|
|
viewModel.request(maxId: nil, minId: nil, search: nil)
|
|
}
|
|
}
|
|
}
|
|
// swiftlint:enable file_length
|