45 lines
1.5 KiB
Swift
45 lines
1.5 KiB
Swift
//
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// NotificationTimelineViewController+DataSourceProvider.swift
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// Mastodon
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//
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// Created by MainasuK on 2022-1-26.
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//
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import UIKit
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extension NotificationTimelineViewController: DataSourceProvider {
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func item(from source: DataSourceItem.Source) async -> DataSourceItem? {
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var _indexPath = source.indexPath
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if _indexPath == nil, let cell = source.tableViewCell {
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_indexPath = await self.indexPath(for: cell)
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}
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guard let indexPath = _indexPath else { return nil }
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guard let item = viewModel.diffableDataSource?.itemIdentifier(for: indexPath) else {
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return nil
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}
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switch item {
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case .feed(let record):
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let managedObjectContext = context.managedObjectContext
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let item: DataSourceItem? = try? await managedObjectContext.perform {
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guard let feed = record.object(in: managedObjectContext) else { return nil }
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guard feed.kind == .notificationAll || feed.kind == .notificationMentions else { return nil }
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if let notification = feed.notification {
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return .notification(record: .init(objectID: notification.objectID))
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} else {
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return nil
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}
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}
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return item
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default:
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return nil
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}
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}
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@MainActor
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private func indexPath(for cell: UITableViewCell) async -> IndexPath? {
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return tableView.indexPath(for: cell)
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}
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}
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