301 lines
14 KiB
Swift
301 lines
14 KiB
Swift
//
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// ComposeViewModel+Diffable.swift
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// Mastodon
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//
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// Created by MainasuK Cirno on 2021-3-11.
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//
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import os.log
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import UIKit
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import Combine
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import CoreDataStack
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import TwitterTextEditor
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import MastodonSDK
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import MastodonMeta
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import MetaTextView
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extension ComposeViewModel {
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func setupDataSource(
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tableView: UITableView,
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metaTextDelegate: MetaTextDelegate,
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metaTextViewDelegate: UITextViewDelegate,
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customEmojiPickerInputViewModel: CustomEmojiPickerInputViewModel,
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composeStatusAttachmentCollectionViewCellDelegate: ComposeStatusAttachmentCollectionViewCellDelegate,
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composeStatusPollOptionCollectionViewCellDelegate: ComposeStatusPollOptionCollectionViewCellDelegate,
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composeStatusPollOptionAppendEntryCollectionViewCellDelegate: ComposeStatusPollOptionAppendEntryCollectionViewCellDelegate,
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composeStatusPollExpiresOptionCollectionViewCellDelegate: ComposeStatusPollExpiresOptionCollectionViewCellDelegate
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) {
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// content
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composeStatusContentTableViewCell.metaText.delegate = metaTextDelegate
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composeStatusContentTableViewCell.metaText.textView.delegate = metaTextViewDelegate
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// attachment
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composeStatusAttachmentTableViewCell.composeStatusAttachmentCollectionViewCellDelegate = composeStatusAttachmentCollectionViewCellDelegate
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// poll
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composeStatusPollTableViewCell.delegate = self
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composeStatusPollTableViewCell.customEmojiPickerInputViewModel = customEmojiPickerInputViewModel
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composeStatusPollTableViewCell.composeStatusPollOptionCollectionViewCellDelegate = composeStatusPollOptionCollectionViewCellDelegate
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composeStatusPollTableViewCell.composeStatusPollOptionAppendEntryCollectionViewCellDelegate = composeStatusPollOptionAppendEntryCollectionViewCellDelegate
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composeStatusPollTableViewCell.composeStatusPollExpiresOptionCollectionViewCellDelegate = composeStatusPollExpiresOptionCollectionViewCellDelegate
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// setup data source
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tableView.dataSource = self
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attachmentServices
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.removeDuplicates()
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.receive(on: DispatchQueue.main)
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.sink { [weak self] attachmentServices in
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guard let self = self else { return }
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guard self.isViewAppeared else { return }
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let cell = self.composeStatusAttachmentTableViewCell
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guard let dataSource = cell.dataSource else { return }
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var snapshot = NSDiffableDataSourceSnapshot<ComposeStatusAttachmentSection, ComposeStatusAttachmentItem>()
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snapshot.appendSections([.main])
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let items = attachmentServices.map { ComposeStatusAttachmentItem.attachment(attachmentService: $0) }
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snapshot.appendItems(items, toSection: .main)
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tableView.performBatchUpdates {
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dataSource.apply(snapshot, animatingDifferences: true)
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} completion: { _ in
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// do nothing
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}
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}
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.store(in: &disposeBag)
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Publishers.CombineLatest(
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isPollComposing,
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pollOptionAttributes
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)
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.receive(on: DispatchQueue.main)
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.sink { [weak self] isPollComposing, pollOptionAttributes in
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guard let self = self else { return }
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guard self.isViewAppeared else { return }
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let cell = self.composeStatusPollTableViewCell
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guard let dataSource = cell.dataSource else { return }
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var snapshot = NSDiffableDataSourceSnapshot<ComposeStatusPollSection, ComposeStatusPollItem>()
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snapshot.appendSections([.main])
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var items: [ComposeStatusPollItem] = []
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if isPollComposing {
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for attribute in pollOptionAttributes {
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items.append(.pollOption(attribute: attribute))
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}
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if pollOptionAttributes.count < 4 {
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items.append(.pollOptionAppendEntry)
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}
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items.append(.pollExpiresOption(attribute: self.pollExpiresOptionAttribute))
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}
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snapshot.appendItems(items, toSection: .main)
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tableView.performBatchUpdates {
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dataSource.apply(snapshot, animatingDifferences: true)
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} completion: { _ in
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// do nothing
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}
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}
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.store(in: &disposeBag)
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}
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func setupCustomEmojiPickerDiffableDataSource(
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for collectionView: UICollectionView,
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dependency: NeedsDependency
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) {
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let diffableDataSource = CustomEmojiPickerSection.collectionViewDiffableDataSource(
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for: collectionView,
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dependency: dependency
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)
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self.customEmojiPickerDiffableDataSource = diffableDataSource
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customEmojiViewModel
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.sink { [weak self, weak diffableDataSource] customEmojiViewModel in
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guard let self = self else { return }
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guard let diffableDataSource = diffableDataSource else { return }
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guard let customEmojiViewModel = customEmojiViewModel else {
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self.customEmojiViewModelSubscription = nil
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let snapshot = NSDiffableDataSourceSnapshot<CustomEmojiPickerSection, CustomEmojiPickerItem>()
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diffableDataSource.apply(snapshot)
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return
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}
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self.customEmojiViewModelSubscription = customEmojiViewModel.emojis
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.receive(on: DispatchQueue.main)
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.sink { [weak self, weak diffableDataSource] emojis in
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guard let _ = self else { return }
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guard let diffableDataSource = diffableDataSource else { return }
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var snapshot = NSDiffableDataSourceSnapshot<CustomEmojiPickerSection, CustomEmojiPickerItem>()
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let customEmojiSection = CustomEmojiPickerSection.emoji(name: customEmojiViewModel.domain.uppercased())
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snapshot.appendSections([customEmojiSection])
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let items: [CustomEmojiPickerItem] = {
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var items = [CustomEmojiPickerItem]()
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for emoji in emojis where emoji.visibleInPicker {
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let attribute = CustomEmojiPickerItem.CustomEmojiAttribute(emoji: emoji)
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let item = CustomEmojiPickerItem.emoji(attribute: attribute)
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items.append(item)
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}
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return items
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}()
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snapshot.appendItems(items, toSection: customEmojiSection)
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diffableDataSource.apply(snapshot)
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}
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}
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.store(in: &disposeBag)
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}
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}
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// MARK: - UITableViewDataSource
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extension ComposeViewModel: UITableViewDataSource {
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enum Section: CaseIterable {
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case repliedTo
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case status
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case attachment
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case poll
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}
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func numberOfSections(in tableView: UITableView) -> Int {
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return Section.allCases.count
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}
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func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
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switch Section.allCases[section] {
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case .repliedTo:
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switch composeKind {
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case .reply: return 1
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default: return 0
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}
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case .status: return 1
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case .attachment:
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return 1
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case .poll:
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return 1
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}
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}
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func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
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switch Section.allCases[indexPath.section] {
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case .repliedTo:
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let cell = tableView.dequeueReusableCell(withIdentifier: String(describing: ComposeRepliedToStatusContentTableViewCell.self), for: indexPath) as! ComposeRepliedToStatusContentTableViewCell
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guard case let .reply(statusObjectID) = composeKind else { return cell }
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cell.framePublisher
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.receive(on: DispatchQueue.main)
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.assign(to: \.value, on: self.repliedToCellFrame)
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.store(in: &cell.disposeBag)
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let managedObjectContext = context.managedObjectContext
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managedObjectContext.performAndWait {
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guard let replyTo = managedObjectContext.object(with: statusObjectID) as? Status else {
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return
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}
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let status = replyTo.reblog ?? replyTo
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// set avatar
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cell.statusView.configure(with: AvatarConfigurableViewConfiguration(avatarImageURL: status.author.avatarImageURL()))
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// set name username
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cell.statusView.nameLabel.configure(content: status.author.displayNameWithFallback, emojiDict: status.author.emojiDict)
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cell.statusView.usernameLabel.text = "@" + status.author.acct
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// set text
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let content = MastodonContent(content: status.content, emojis: status.emojiMeta)
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do {
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let metaContent = try MastodonMetaContent.convert(document: content)
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cell.statusView.contentMetaText.configure(content: metaContent)
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} catch {
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cell.statusView.contentMetaText.textView.text = " "
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assertionFailure()
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}
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// set date
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cell.statusView.dateLabel.text = status.createdAt.slowedTimeAgoSinceNow
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}
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return cell
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case .status:
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let cell = self.composeStatusContentTableViewCell
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// configure header
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let managedObjectContext = context.managedObjectContext
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managedObjectContext.performAndWait {
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guard case let .reply(replyToStatusObjectID) = self.composeKind,
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let replyTo = managedObjectContext.object(with: replyToStatusObjectID) as? Status else {
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cell.statusView.headerContainerView.isHidden = true
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return
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}
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cell.statusView.headerContainerView.isHidden = false
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cell.statusView.headerIconLabel.attributedText = StatusView.iconAttributedString(image: StatusView.replyIconImage)
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let headerText: String = {
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let author = replyTo.author
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let name = author.displayName.isEmpty ? author.username : author.displayName
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return L10n.Scene.Compose.replyingToUser(name)
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}()
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MastodonStatusContent.parseResult(content: headerText, emojiDict: replyTo.author.emojiDict)
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.receive(on: DispatchQueue.main)
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.sink { [weak cell] parseResult in
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guard let cell = cell else { return }
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cell.statusView.headerInfoLabel.configure(contentParseResult: parseResult)
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}
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.store(in: &cell.disposeBag)
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}
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// configure author
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ComposeStatusSection.configureStatusContent(cell: cell, attribute: composeStatusAttribute)
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// configure content. bind text in UITextViewDelegate
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if let composeContent = composeStatusAttribute.composeContent.value {
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cell.metaText.textView.text = composeContent
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}
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// configure content warning
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cell.statusContentWarningEditorView.textView.text = composeStatusAttribute.contentWarningContent.value
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// bind content warning
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composeStatusAttribute.isContentWarningComposing
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.receive(on: DispatchQueue.main)
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.sink { [weak cell, weak tableView] isContentWarningComposing in
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guard let cell = cell else { return }
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guard let tableView = tableView else { return }
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// self size input cell
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cell.statusContentWarningEditorView.isHidden = !isContentWarningComposing
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cell.statusContentWarningEditorView.alpha = 0
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UIView.animate(withDuration: 0.33, delay: 0, options: [.curveEaseOut]) {
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cell.statusContentWarningEditorView.alpha = 1
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tableView.beginUpdates()
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tableView.endUpdates()
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} completion: { _ in
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// do nothing
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}
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}
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.store(in: &cell.disposeBag)
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cell.contentWarningContent
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.removeDuplicates()
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.receive(on: DispatchQueue.main)
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.sink { [weak tableView, weak self] text in
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guard let self = self else { return }
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// bind input data
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self.composeStatusAttribute.contentWarningContent.value = text
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// self size input cell
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guard let tableView = tableView else { return }
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UIView.performWithoutAnimation {
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tableView.beginUpdates()
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tableView.endUpdates()
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}
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}
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.store(in: &cell.disposeBag)
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// configure custom emoji picker
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ComposeStatusSection.configureCustomEmojiPicker(viewModel: customEmojiPickerInputViewModel, customEmojiReplaceableTextInput: cell.metaText.textView, disposeBag: &cell.disposeBag)
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ComposeStatusSection.configureCustomEmojiPicker(viewModel: customEmojiPickerInputViewModel, customEmojiReplaceableTextInput: cell.statusContentWarningEditorView.textView, disposeBag: &cell.disposeBag)
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return cell
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case .attachment:
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let cell = self.composeStatusAttachmentTableViewCell
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return cell
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case .poll:
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let cell = self.composeStatusPollTableViewCell
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return cell
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}
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}
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}
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// MARK: - ComposeStatusPollTableViewCellDelegate
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extension ComposeViewModel: ComposeStatusPollTableViewCellDelegate {
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func composeStatusPollTableViewCell(_ cell: ComposeStatusPollTableViewCell, pollOptionAttributesDidReorder options: [ComposeStatusPollItem.PollOptionAttribute]) {
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os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
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self.pollOptionAttributes.value = options
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}
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}
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