mastodon-ios/Mastodon/Scene/Search/SearchResult/SearchResultViewController....

254 lines
10 KiB
Swift

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