255 lines
10 KiB
Swift
255 lines
10 KiB
Swift
//
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// SearchResultViewController.swift
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// Mastodon
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//
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// Created by MainasuK Cirno on 2021-7-14.
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//
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import UIKit
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import Combine
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import AVKit
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import GameplayKit
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final class SearchResultViewController: 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 viewModel: SearchResultViewModel!
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var disposeBag = Set<AnyCancellable>()
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let tableView: UITableView = {
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let tableView = UITableView()
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tableView.register(SearchResultTableViewCell.self, forCellReuseIdentifier: String(describing: SearchResultTableViewCell.self))
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tableView.register(StatusTableViewCell.self, forCellReuseIdentifier: String(describing: StatusTableViewCell.self))
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tableView.register(TimelineBottomLoaderTableViewCell.self, forCellReuseIdentifier: String(describing: TimelineBottomLoaderTableViewCell.self))
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tableView.separatorStyle = .none
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tableView.tableFooterView = UIView()
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tableView.backgroundColor = .clear
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return tableView
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}()
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}
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extension SearchResultViewController {
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override func viewDidLoad() {
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super.viewDidLoad()
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setupBackgroundColor(theme: ThemeService.shared.currentTheme.value)
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ThemeService.shared.currentTheme
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.receive(on: RunLoop.main)
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.sink { [weak self] theme in
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guard let self = self else { return }
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self.setupBackgroundColor(theme: theme)
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}
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.store(in: &disposeBag)
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tableView.translatesAutoresizingMaskIntoConstraints = false
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view.addSubview(tableView)
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NSLayoutConstraint.activate([
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tableView.topAnchor.constraint(equalTo: view.topAnchor),
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tableView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
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tableView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
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tableView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
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])
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tableView.delegate = self
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tableView.prefetchDataSource = self
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viewModel.setupDiffableDataSource(
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tableView: tableView,
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dependency: self,
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statusTableViewCellDelegate: self
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)
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// listen keyboard events and set content inset
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let keyboardEventPublishers = Publishers.CombineLatest3(
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KeyboardResponderService.shared.isShow,
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KeyboardResponderService.shared.state,
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KeyboardResponderService.shared.endFrame
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)
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Publishers.CombineLatest3(
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keyboardEventPublishers,
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viewModel.viewDidAppear,
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viewModel.didDataSourceUpdate
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)
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.sink(receiveValue: { [weak self] keyboardEvents, _, _ in
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guard let self = self else { return }
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let (isShow, state, endFrame) = keyboardEvents
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// update keyboard background color
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guard isShow, state == .dock else {
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self.tableView.contentInset.bottom = 0
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self.tableView.verticalScrollIndicatorInsets.bottom = 0
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return
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}
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// isShow AND dock state
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// adjust inset for tableView
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let contentFrame = self.view.convert(self.tableView.frame, to: nil)
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let padding = contentFrame.maxY - endFrame.minY
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guard padding > 0 else {
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self.tableView.contentInset.bottom = self.view.safeAreaInsets.bottom
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self.tableView.verticalScrollIndicatorInsets.bottom = self.view.safeAreaInsets.bottom
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return
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}
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self.tableView.contentInset.bottom = padding - self.view.safeAreaInsets.bottom
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self.tableView.verticalScrollIndicatorInsets.bottom = padding - self.view.safeAreaInsets.bottom
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})
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.store(in: &disposeBag)
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// works for already onscreen page
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viewModel.navigationBarFrame
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.removeDuplicates()
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.receive(on: DispatchQueue.main)
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.sink { [weak self] frame in
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guard let self = self else { return }
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guard self.viewModel.viewDidAppear.value else { return }
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self.tableView.contentInset.top = frame.height
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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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// works for appearing page
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if !viewModel.viewDidAppear.value {
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tableView.contentInset.top = viewModel.navigationBarFrame.value.height
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tableView.contentOffset.y = -viewModel.navigationBarFrame.value.height
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}
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aspectViewWillAppear(animated)
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}
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override func viewDidAppear(_ animated: Bool) {
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super.viewDidAppear(animated)
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viewModel.viewDidAppear.value = true
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}
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override func viewDidDisappear(_ animated: Bool) {
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super.viewDidDisappear(animated)
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aspectViewDidDisappear(animated)
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}
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}
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extension SearchResultViewController {
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private func setupBackgroundColor(theme: Theme) {
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view.backgroundColor = theme.systemGroupedBackgroundColor
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// tableView.backgroundColor = theme.systemBackgroundColor
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// searchHeader.backgroundColor = theme.systemGroupedBackgroundColor
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}
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}
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// MARK: - StatusTableViewCellDelegate
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extension SearchResultViewController: StatusTableViewCellDelegate {
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weak var playerViewControllerDelegate: AVPlayerViewControllerDelegate? { return self }
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func parent() -> UIViewController { return self }
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}
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// MARK: - StatusTableViewControllerAspect
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extension SearchResultViewController: StatusTableViewControllerAspect { }
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// MARK: - LoadMoreConfigurableTableViewContainer
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extension SearchResultViewController: LoadMoreConfigurableTableViewContainer {
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typealias BottomLoaderTableViewCell = TimelineBottomLoaderTableViewCell
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typealias LoadingState = SearchResultViewModel.State.Loading
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var loadMoreConfigurableTableView: UITableView { tableView }
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var loadMoreConfigurableStateMachine: GKStateMachine { viewModel.stateMachine }
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}
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// MARK: - UIScrollViewDelegate
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extension SearchResultViewController {
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func scrollViewDidScroll(_ scrollView: UIScrollView) {
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aspectScrollViewDidScroll(scrollView)
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}
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}
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// MARK: - TableViewCellHeightCacheableContainer
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extension SearchResultViewController: TableViewCellHeightCacheableContainer {
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var cellFrameCache: NSCache<NSNumber, NSValue> {
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viewModel.cellFrameCache
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}
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}
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// MARK: - UITableViewDelegate
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extension SearchResultViewController: UITableViewDelegate {
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func tableView(_ tableView: UITableView, estimatedHeightForRowAt indexPath: IndexPath) -> CGFloat {
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aspectTableView(tableView, estimatedHeightForRowAt: indexPath)
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}
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func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
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aspectTableView(tableView, willDisplay: cell, forRowAt: indexPath)
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}
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func tableView(_ tableView: UITableView, didEndDisplaying cell: UITableViewCell, forRowAt indexPath: IndexPath) {
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aspectTableView(tableView, didEndDisplaying: cell, forRowAt: indexPath)
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}
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func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
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guard let diffableDataSource = viewModel.diffableDataSource else { return }
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guard let item = diffableDataSource.itemIdentifier(for: indexPath) else { return }
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viewModel.persistSearchHistory(for: item)
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switch item {
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case .account(let account):
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let profileViewModel = RemoteProfileViewModel(context: context, userID: account.id)
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coordinator.present(scene: .profile(viewModel: profileViewModel), from: self, transition: .show)
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case .hashtag(let hashtag):
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let hashtagViewModel = HashtagTimelineViewModel(context: context, hashtag: hashtag.name)
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coordinator.present(scene: .hashtagTimeline(viewModel: hashtagViewModel), from: self, transition: .show)
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case .status:
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aspectTableView(tableView, didSelectRowAt: indexPath)
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case .bottomLoader:
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break
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}
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}
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func tableView(_ tableView: UITableView, contextMenuConfigurationForRowAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? {
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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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aspectTableView(tableView, previewForHighlightingContextMenuWithConfiguration: configuration)
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}
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func tableView(_ tableView: UITableView, previewForDismissingContextMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
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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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}
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// MARK: - UITableViewDataSourcePrefetching
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extension SearchResultViewController: UITableViewDataSourcePrefetching {
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func tableView(_ tableView: UITableView, prefetchRowsAt indexPaths: [IndexPath]) {
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aspectTableView(tableView, cancelPrefetchingForRowsAt: indexPaths)
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}
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func tableView(_ tableView: UITableView, cancelPrefetchingForRowsAt indexPaths: [IndexPath]) {
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aspectTableView(tableView, cancelPrefetchingForRowsAt: indexPaths)
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}
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}
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// MARK: - AVPlayerViewControllerDelegate
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extension SearchResultViewController: AVPlayerViewControllerDelegate {
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func playerViewController(_ playerViewController: AVPlayerViewController, willBeginFullScreenPresentationWithAnimationCoordinator coordinator: UIViewControllerTransitionCoordinator) {
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handlePlayerViewController(playerViewController, willBeginFullScreenPresentationWithAnimationCoordinator: coordinator)
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}
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func playerViewController(_ playerViewController: AVPlayerViewController, willEndFullScreenPresentationWithAnimationCoordinator coordinator: UIViewControllerTransitionCoordinator) {
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handlePlayerViewController(playerViewController, willEndFullScreenPresentationWithAnimationCoordinator: coordinator)
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}
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}
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