Kurdtvs-Live-Kurdish-TV-Kur.../Mastodon/Scene/Compose/TableViewCell/ComposeStatusPollTableViewC...

210 lines
11 KiB
Swift

//
// ComposeStatusPollTableViewCell.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-6-29.
//
import os.log
import UIKit
import Combine
import MastodonAsset
import MastodonLocalization
protocol ComposeStatusPollTableViewCellDelegate: AnyObject {
func composeStatusPollTableViewCell(_ cell: ComposeStatusPollTableViewCell, pollOptionAttributesDidReorder options: [ComposeStatusPollItem.PollOptionAttribute])
}
final class ComposeStatusPollTableViewCell: UITableViewCell {
let logger = Logger(subsystem: "ComposeStatusPollTableViewCell", category: "UI")
private(set) var dataSource: UICollectionViewDiffableDataSource<ComposeStatusPollSection, ComposeStatusPollItem>!
var observations = Set<NSKeyValueObservation>()
weak var customEmojiPickerInputViewModel: CustomEmojiPickerInputViewModel?
weak var delegate: ComposeStatusPollTableViewCellDelegate?
weak var composeStatusPollOptionCollectionViewCellDelegate: ComposeStatusPollOptionCollectionViewCellDelegate?
weak var composeStatusPollOptionAppendEntryCollectionViewCellDelegate: ComposeStatusPollOptionAppendEntryCollectionViewCellDelegate?
weak var composeStatusPollExpiresOptionCollectionViewCellDelegate: ComposeStatusPollExpiresOptionCollectionViewCellDelegate?
private static func createLayout() -> UICollectionViewLayout {
let itemSize = NSCollectionLayoutSize(widthDimension: .fractionalWidth(1.0), heightDimension: .estimated(44))
let item = NSCollectionLayoutItem(layoutSize: itemSize)
let groupSize = NSCollectionLayoutSize(widthDimension: .fractionalWidth(1.0), heightDimension: .estimated(44))
let group = NSCollectionLayoutGroup.vertical(layoutSize: groupSize, subitems: [item])
let section = NSCollectionLayoutSection(group: group)
section.contentInsetsReference = .readableContent
return UICollectionViewCompositionalLayout(section: section)
}
private(set) var collectionViewHeightLayoutConstraint: NSLayoutConstraint!
let collectionView: UICollectionView = {
let collectionViewLayout = ComposeStatusPollTableViewCell.createLayout()
let collectionView = UICollectionView(frame: .zero, collectionViewLayout: collectionViewLayout)
collectionView.register(ComposeStatusPollOptionCollectionViewCell.self, forCellWithReuseIdentifier: String(describing: ComposeStatusPollOptionCollectionViewCell.self))
collectionView.register(ComposeStatusPollOptionAppendEntryCollectionViewCell.self, forCellWithReuseIdentifier: String(describing: ComposeStatusPollOptionAppendEntryCollectionViewCell.self))
collectionView.register(ComposeStatusPollExpiresOptionCollectionViewCell.self, forCellWithReuseIdentifier: String(describing: ComposeStatusPollExpiresOptionCollectionViewCell.self))
collectionView.backgroundColor = .clear
collectionView.alwaysBounceVertical = true
collectionView.isScrollEnabled = false
collectionView.dragInteractionEnabled = true
return collectionView
}()
let collectionViewHeightDidUpdate = PassthroughSubject<Void, Never>()
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
_init()
}
required init?(coder: NSCoder) {
super.init(coder: coder)
_init()
}
}
extension ComposeStatusPollTableViewCell {
private func _init() {
backgroundColor = .clear
contentView.backgroundColor = .clear
collectionView.translatesAutoresizingMaskIntoConstraints = false
contentView.addSubview(collectionView)
collectionViewHeightLayoutConstraint = collectionView.heightAnchor.constraint(equalToConstant: 300).priority(.defaultHigh)
NSLayoutConstraint.activate([
collectionView.topAnchor.constraint(equalTo: contentView.topAnchor),
collectionView.leadingAnchor.constraint(equalTo: contentView.leadingAnchor),
collectionView.trailingAnchor.constraint(equalTo: contentView.trailingAnchor),
collectionView.bottomAnchor.constraint(equalTo: contentView.bottomAnchor),
collectionViewHeightLayoutConstraint,
])
collectionView.observe(\.contentSize, options: [.initial, .new]) { [weak self] collectionView, _ in
guard let self = self else { return }
self.collectionViewHeightLayoutConstraint.constant = collectionView.contentSize.height
self.collectionViewHeightDidUpdate.send()
}
.store(in: &observations)
self.dataSource = UICollectionViewDiffableDataSource(collectionView: collectionView) { [
weak self
] collectionView, indexPath, item -> UICollectionViewCell? in
guard let self = self else { return UICollectionViewCell() }
switch item {
case .pollOption(let attribute):
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: String(describing: ComposeStatusPollOptionCollectionViewCell.self), for: indexPath) as! ComposeStatusPollOptionCollectionViewCell
cell.pollOptionView.optionTextField.text = attribute.option.value
cell.pollOptionView.optionTextField.placeholder = L10n.Scene.Compose.Poll.optionNumber(indexPath.item + 1)
cell.pollOption
.receive(on: DispatchQueue.main)
.assign(to: \.value, on: attribute.option)
.store(in: &cell.disposeBag)
cell.delegate = self.composeStatusPollOptionCollectionViewCellDelegate
if let customEmojiPickerInputViewModel = self.customEmojiPickerInputViewModel {
ComposeStatusSection.configureCustomEmojiPicker(viewModel: customEmojiPickerInputViewModel, customEmojiReplaceableTextInput: cell.pollOptionView.optionTextField, disposeBag: &cell.disposeBag)
}
return cell
case .pollOptionAppendEntry:
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: String(describing: ComposeStatusPollOptionAppendEntryCollectionViewCell.self), for: indexPath) as! ComposeStatusPollOptionAppendEntryCollectionViewCell
cell.delegate = self.composeStatusPollOptionAppendEntryCollectionViewCellDelegate
return cell
case .pollExpiresOption(let attribute):
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: String(describing: ComposeStatusPollExpiresOptionCollectionViewCell.self), for: indexPath) as! ComposeStatusPollExpiresOptionCollectionViewCell
cell.durationButton.setTitle(L10n.Scene.Compose.Poll.durationTime(attribute.expiresOption.value.title), for: .normal)
attribute.expiresOption
.receive(on: DispatchQueue.main)
.sink { [weak cell] expiresOption in
guard let cell = cell else { return }
cell.durationButton.setTitle(L10n.Scene.Compose.Poll.durationTime(expiresOption.title), for: .normal)
}
.store(in: &cell.disposeBag)
cell.delegate = self.composeStatusPollExpiresOptionCollectionViewCellDelegate
return cell
}
}
collectionView.dragDelegate = self
collectionView.dropDelegate = self
}
}
// MARK: - UICollectionViewDragDelegate
extension ComposeStatusPollTableViewCell: UICollectionViewDragDelegate {
func collectionView(_ collectionView: UICollectionView, itemsForBeginning session: UIDragSession, at indexPath: IndexPath) -> [UIDragItem] {
guard let item = dataSource.itemIdentifier(for: indexPath) else { return [] }
switch item {
case .pollOption:
let itemProvider = NSItemProvider(object: String(item.hashValue) as NSString)
let dragItem = UIDragItem(itemProvider: itemProvider)
dragItem.localObject = item
return [dragItem]
default:
return []
}
}
func collectionView(_ collectionView: UICollectionView, dragSessionIsRestrictedToDraggingApplication session: UIDragSession) -> Bool {
// drag to app should be the same app
return true
}
}
// MARK: - UICollectionViewDropDelegate
extension ComposeStatusPollTableViewCell: UICollectionViewDropDelegate {
// didUpdate
func collectionView(_ collectionView: UICollectionView, dropSessionDidUpdate session: UIDropSession, withDestinationIndexPath destinationIndexPath: IndexPath?) -> UICollectionViewDropProposal {
guard collectionView.hasActiveDrag,
let destinationIndexPath = destinationIndexPath,
let item = dataSource.itemIdentifier(for: destinationIndexPath)
else {
return UICollectionViewDropProposal(operation: .forbidden)
}
switch item {
case .pollOption:
return UICollectionViewDropProposal(operation: .move, intent: .insertAtDestinationIndexPath)
default:
return UICollectionViewDropProposal(operation: .cancel)
}
}
// performDrop
func collectionView(_ collectionView: UICollectionView, performDropWith coordinator: UICollectionViewDropCoordinator) {
guard let dropItem = coordinator.items.first,
let item = dropItem.dragItem.localObject as? ComposeStatusPollItem,
case .pollOption = item
else { return }
guard coordinator.proposal.operation == .move else { return }
guard let destinationIndexPath = coordinator.destinationIndexPath,
let _ = collectionView.cellForItem(at: destinationIndexPath) as? ComposeStatusPollOptionCollectionViewCell
else { return }
var snapshot = dataSource.snapshot()
guard destinationIndexPath.row < snapshot.itemIdentifiers.count else { return }
let anchorItem = snapshot.itemIdentifiers[destinationIndexPath.row]
snapshot.moveItem(item, afterItem: anchorItem)
dataSource.apply(snapshot)
coordinator.drop(dropItem.dragItem, toItemAt: destinationIndexPath)
}
}
extension ComposeStatusPollTableViewCell: UICollectionViewDelegate {
func collectionView(_ collectionView: UICollectionView, targetIndexPathForMoveFromItemAt originalIndexPath: IndexPath, toProposedIndexPath proposedIndexPath: IndexPath) -> IndexPath {
logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): \(originalIndexPath.debugDescription) -> \(proposedIndexPath.debugDescription)")
guard let _ = collectionView.cellForItem(at: proposedIndexPath) as? ComposeStatusPollOptionCollectionViewCell else {
return originalIndexPath
}
return proposedIndexPath
}
}