260 lines
9.3 KiB
Swift
260 lines
9.3 KiB
Swift
//
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// HashtagTimelineViewController.swift
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// Mastodon
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//
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// Created by BradGao on 2021/3/30.
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//
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import UIKit
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import AVKit
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import Combine
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import GameplayKit
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import CoreData
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import MastodonAsset
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import MastodonCore
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import MastodonUI
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import MastodonLocalization
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import MastodonSDK
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final class HashtagTimelineViewController: UIViewController, NeedsDependency, MediaPreviewableViewController {
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weak var context: AppContext! { willSet { precondition(!isViewLoaded) } }
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weak var coordinator: SceneCoordinator! { willSet { precondition(!isViewLoaded) } }
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let mediaPreviewTransitionController = MediaPreviewTransitionController()
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var disposeBag = Set<AnyCancellable>()
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var viewModel: HashtagTimelineViewModel!
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private lazy var headerView: HashtagTimelineHeaderView = {
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let headerView = HashtagTimelineHeaderView()
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headerView.translatesAutoresizingMaskIntoConstraints = false
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NSLayoutConstraint.activate([
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headerView.heightAnchor.constraint(equalToConstant: 118),
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])
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return headerView
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}()
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let composeBarButtonItem: UIBarButtonItem = {
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let barButtonItem = UIBarButtonItem()
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barButtonItem.image = UIImage(systemName: "square.and.pencil")!.withRenderingMode(.alwaysTemplate)
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return barButtonItem
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}()
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let titleView = DoubleTitleLabelNavigationBarTitleView()
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let tableView: UITableView = {
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let tableView = ControlContainableTableView()
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tableView.register(StatusTableViewCell.self, forCellReuseIdentifier: String(describing: StatusTableViewCell.self))
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tableView.register(TimelineMiddleLoaderTableViewCell.self, forCellReuseIdentifier: String(describing: TimelineMiddleLoaderTableViewCell.self))
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tableView.register(TimelineBottomLoaderTableViewCell.self, forCellReuseIdentifier: String(describing: TimelineBottomLoaderTableViewCell.self))
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tableView.rowHeight = UITableView.automaticDimension
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tableView.separatorStyle = .none
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tableView.backgroundColor = .clear
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return tableView
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}()
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let refreshControl = RefreshControl()
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}
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extension HashtagTimelineViewController {
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override func viewDidLoad() {
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super.viewDidLoad()
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let _title = "#\(viewModel.hashtag)"
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title = _title
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titleView.update(title: _title, subtitle: nil)
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navigationItem.titleView = titleView
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view.backgroundColor = .secondarySystemBackground
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navigationItem.rightBarButtonItem = composeBarButtonItem
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composeBarButtonItem.target = self
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composeBarButtonItem.action = #selector(HashtagTimelineViewController.composeBarButtonItemPressed(_:))
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tableView.translatesAutoresizingMaskIntoConstraints = false
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view.addSubview(tableView)
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tableView.pinToParent()
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tableView.delegate = self
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viewModel.setupDiffableDataSource(
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tableView: tableView,
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statusTableViewCellDelegate: self
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)
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tableView.refreshControl = refreshControl
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refreshControl.addTarget(self, action: #selector(HashtagTimelineViewController.refreshControlValueChanged(_:)), for: .valueChanged)
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viewModel.didLoadLatest
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.receive(on: DispatchQueue.main)
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.sink { [weak self] _ in
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guard let self = self else { return }
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self.refreshControl.endRefreshing()
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}
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.store(in: &disposeBag)
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// setup batch fetch
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viewModel.listBatchFetchViewModel.setup(scrollView: tableView)
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viewModel.listBatchFetchViewModel.shouldFetch
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.receive(on: DispatchQueue.main)
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.sink { [weak self] _ in
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guard let self = self else { return }
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self.viewModel.stateMachine.enter(HashtagTimelineViewModel.State.Loading.self)
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}
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.store(in: &disposeBag)
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viewModel.hashtagEntity
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.receive(on: DispatchQueue.main)
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.sink { [weak self] tag in
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self?.updatePromptTitle()
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}
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.store(in: &disposeBag)
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viewModel.hashtagDetails
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.receive(on: DispatchQueue.main)
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.sink { [weak self] tag in
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guard let tag = tag else { return }
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self?.updateHeaderView(with: tag)
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}
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.store(in: &disposeBag)
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}
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override func viewWillAppear(_ animated: Bool) {
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super.viewWillAppear(animated)
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viewModel.viewWillAppear()
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tableView.deselectRow(with: transitionCoordinator, animated: animated)
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}
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}
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extension HashtagTimelineViewController {
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private func updatePromptTitle() {
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var subtitle: String?
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defer {
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titleView.update(title: "#" + viewModel.hashtag, subtitle: subtitle)
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}
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guard let histories = viewModel.hashtagEntity.value?.history else {
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return
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}
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if histories.isEmpty {
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// No tag history, remove the prompt title
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return
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} else {
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let sortedHistory = histories.sorted { (h1, h2) -> Bool in
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return h1.day > h2.day
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}
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let peopleTalkingNumber = sortedHistory
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.prefix(2)
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.compactMap({ Int($0.accounts) })
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.reduce(0, +)
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subtitle = L10n.Plural.peopleTalking(peopleTalkingNumber)
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}
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}
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}
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extension HashtagTimelineViewController {
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private func updateHeaderView(with tag: Mastodon.Entity.Tag) {
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if tableView.tableHeaderView == nil {
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tableView.tableHeaderView = headerView
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}
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headerView.update(HashtagTimelineHeaderView.Data.from(tag))
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headerView.onButtonTapped = { [weak self] in
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switch tag.following {
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case .some(false):
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self?.viewModel.followTag()
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case .some(true):
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self?.viewModel.unfollowTag()
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default:
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break
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}
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}
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}
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override func viewDidLayoutSubviews() {
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super.viewDidLayoutSubviews()
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headerView.updateWidthConstraint(tableView.bounds.width)
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}
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}
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extension HashtagTimelineViewController {
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@objc private func refreshControlValueChanged(_ sender: RefreshControl) {
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guard viewModel.stateMachine.enter(HashtagTimelineViewModel.State.Reloading.self) else {
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sender.endRefreshing()
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return
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}
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}
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@objc private func composeBarButtonItemPressed(_ sender: UIBarButtonItem) {
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let hashtag = "#" + viewModel.hashtag
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UITextChecker.learnWord(hashtag)
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let composeViewModel = ComposeViewModel(
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context: context,
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authContext: viewModel.authContext,
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composeContext: .composeStatus,
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destination: .topLevel,
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initialContent: hashtag
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)
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_ = coordinator.present(scene: .compose(viewModel: composeViewModel), from: self, transition: .modal(animated: true, completion: nil))
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}
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}
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// MARK: - AuthContextProvider
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extension HashtagTimelineViewController: AuthContextProvider {
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var authContext: AuthContext { viewModel.authContext }
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}
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// MARK: - UITableViewDelegate
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extension HashtagTimelineViewController: UITableViewDelegate, AutoGenerateTableViewDelegate {
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// sourcery:inline:HashtagTimelineViewController.AutoGenerateTableViewDelegate
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// Generated using Sourcery
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// DO NOT EDIT
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func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
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aspectTableView(tableView, didSelectRowAt: indexPath)
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}
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func tableView(_ tableView: UITableView, contextMenuConfigurationForRowAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? {
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return aspectTableView(tableView, contextMenuConfigurationForRowAt: indexPath, point: point)
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}
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func tableView(_ tableView: UITableView, previewForHighlightingContextMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
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return aspectTableView(tableView, previewForHighlightingContextMenuWithConfiguration: configuration)
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}
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func tableView(_ tableView: UITableView, previewForDismissingContextMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
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return aspectTableView(tableView, previewForDismissingContextMenuWithConfiguration: configuration)
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}
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func tableView(_ tableView: UITableView, willPerformPreviewActionForMenuWith configuration: UIContextMenuConfiguration, animator: UIContextMenuInteractionCommitAnimating) {
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aspectTableView(tableView, willPerformPreviewActionForMenuWith: configuration, animator: animator)
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}
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// sourcery:end
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}
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// MARK: - StatusTableViewCellDelegate
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extension HashtagTimelineViewController: StatusTableViewCellDelegate { }
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extension HashtagTimelineViewController {
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override var keyCommands: [UIKeyCommand]? {
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return navigationKeyCommands + statusNavigationKeyCommands
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}
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}
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// MARK: - StatusTableViewControllerNavigateable
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extension HashtagTimelineViewController: StatusTableViewControllerNavigateable {
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@objc func navigateKeyCommandHandlerRelay(_ sender: UIKeyCommand) {
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navigateKeyCommandHandler(sender)
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}
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@objc func statusKeyCommandHandlerRelay(_ sender: UIKeyCommand) {
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statusKeyCommandHandler(sender)
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}
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}
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