253 lines
11 KiB
Swift
253 lines
11 KiB
Swift
//
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// NotificationsTableViewController.swift
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// Tusker
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//
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// Created by Shadowfacts on 9/2/18.
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// Copyright © 2018 Shadowfacts. All rights reserved.
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//
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import UIKit
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import Pachyderm
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class NotificationsTableViewController: EnhancedTableViewController {
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private let statusCell = "statusCell"
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private let actionGroupCell = "actionGroupCell"
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private let followGroupCell = "followGroupCell"
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private let followRequestCell = "followRequestCell"
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let excludedTypes: [Pachyderm.Notification.Kind]
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let groupTypes = [Notification.Kind.favourite, .reblog, .follow]
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var groups: [NotificationGroup] = [] {
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didSet {
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DispatchQueue.main.async {
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self.tableView.reloadData()
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}
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}
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}
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var newer: RequestRange?
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var older: RequestRange?
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init(allowedTypes: [Pachyderm.Notification.Kind]) {
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self.excludedTypes = Array(Set(Pachyderm.Notification.Kind.allCases).subtracting(allowedTypes))
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super.init(style: .plain)
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self.refreshControl = UIRefreshControl()
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refreshControl!.addTarget(self, action: #selector(refreshNotifications(_:)), for: .valueChanged)
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}
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required init?(coder aDecoder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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override func viewDidLoad() {
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super.viewDidLoad()
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tableView.rowHeight = UITableView.automaticDimension
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tableView.estimatedRowHeight = 140
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tableView.register(UINib(nibName: "TimelineStatusTableViewCell", bundle: .main), forCellReuseIdentifier: statusCell)
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tableView.register(UINib(nibName: "ActionNotificationGroupTableViewCell", bundle: .main), forCellReuseIdentifier: actionGroupCell)
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tableView.register(UINib(nibName: "FollowNotificationGroupTableViewCell", bundle: .main), forCellReuseIdentifier: followGroupCell)
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tableView.register(UINib(nibName: "FollowRequestNotificationTableViewCell", bundle: .main), forCellReuseIdentifier: followRequestCell)
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tableView.prefetchDataSource = self
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let request = MastodonController.client.getNotifications(excludeTypes: excludedTypes)
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MastodonController.client.run(request) { result in
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guard case let .success(notifications, pagination) = result else { fatalError() }
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let groups = NotificationGroup.createGroups(notifications: notifications, only: self.groupTypes)
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self.groups.append(contentsOf: groups)
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MastodonCache.addAll(notifications: notifications)
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MastodonCache.addAll(statuses: notifications.compactMap { $0.status })
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MastodonCache.addAll(accounts: notifications.map { $0.account })
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self.newer = pagination?.newer
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self.older = pagination?.older
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}
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}
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// MARK: - Table view data source
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override func numberOfSections(in tableView: UITableView) -> Int {
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return 1
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}
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override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
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return groups.count
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}
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override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
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let group = groups[indexPath.row]
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switch group.kind {
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case .mention:
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guard let notification = MastodonCache.notification(for: group.notificationIDs.first!),
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let cell = tableView.dequeueReusableCell(withIdentifier: statusCell, for: indexPath) as? TimelineStatusTableViewCell else {
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fatalError()
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}
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cell.updateUI(statusID: notification.status!.id, state: group.statusState!)
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cell.delegate = self
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return cell
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case .favourite, .reblog:
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guard let cell = tableView.dequeueReusableCell(withIdentifier: actionGroupCell, for: indexPath) as? ActionNotificationGroupTableViewCell else { fatalError() }
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cell.updateUI(group: group)
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cell.delegate = self
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return cell
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case .follow:
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guard let cell = tableView.dequeueReusableCell(withIdentifier: followGroupCell, for: indexPath) as? FollowNotificationGroupTableViewCell else { fatalError() }
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cell.updateUI(group: group)
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cell.delegate = self
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return cell
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case .followRequest:
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guard let notification = MastodonCache.notification(for: group.notificationIDs.first!),
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let cell = tableView.dequeueReusableCell(withIdentifier: followRequestCell, for: indexPath) as? FollowRequestNotificationTableViewCell else { fatalError() }
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cell.updateUI(notification: notification)
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cell.delegate = self
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return cell
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}
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}
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// MARK: - Table view delegate
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override func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
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if indexPath.row == groups.count - 1 {
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guard let older = older else { return }
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let request = MastodonController.client.getNotifications(excludeTypes: excludedTypes, range: older)
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MastodonController.client.run(request) { result in
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guard case let .success(newNotifications, pagination) = result else { fatalError() }
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let groups = NotificationGroup.createGroups(notifications: newNotifications, only: self.groupTypes)
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self.groups.append(contentsOf: groups)
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MastodonCache.addAll(notifications: newNotifications)
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MastodonCache.addAll(statuses: newNotifications.compactMap { $0.status })
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MastodonCache.addAll(accounts: newNotifications.map { $0.account })
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self.older = pagination?.older
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}
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}
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}
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override func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
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return true
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}
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override func tableView(_ tableView: UITableView, leadingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {
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return (tableView.cellForRow(at: indexPath) as? TableViewSwipeActionProvider)?.leadingSwipeActionsConfiguration()
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}
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override func tableView(_ tableView: UITableView, trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {
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let dismissAction = UIContextualAction(style: .destructive, title: NSLocalizedString("Dismiss", comment: "dismiss notification swipe action title")) { (action, view, completion) in
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self.dismissNotificationsInGroup(at: indexPath) {
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completion(true)
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}
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}
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dismissAction.image = UIImage(systemName: "clear.fill")
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let cellConfiguration = (tableView.cellForRow(at: indexPath) as? TableViewSwipeActionProvider)?.trailingSwipeActionsConfiguration()
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let config: UISwipeActionsConfiguration
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if let cellConfiguration = cellConfiguration {
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config = UISwipeActionsConfiguration(actions: cellConfiguration.actions + [dismissAction])
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config.performsFirstActionWithFullSwipe = cellConfiguration.performsFirstActionWithFullSwipe
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} else {
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config = UISwipeActionsConfiguration(actions: [dismissAction])
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config.performsFirstActionWithFullSwipe = false
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}
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return config
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}
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override func getSuggestedContextMenuActions(tableView: UITableView, indexPath: IndexPath, point: CGPoint) -> [UIAction] {
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return [
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UIAction(title: "Dismiss Notification", image: UIImage(systemName: "clear.fill"), identifier: .init("dismissnotification"), discoverabilityTitle: nil, attributes: [], state: .off, handler: { (_) in
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self.dismissNotificationsInGroup(at: indexPath)
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})
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]
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}
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func dismissNotificationsInGroup(at indexPath: IndexPath, completion: (() -> Void)? = nil) {
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let group = DispatchGroup()
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groups[indexPath.row].notificationIDs
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.map(Pachyderm.Notification.dismiss(id:))
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.forEach { (request) in
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group.enter()
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MastodonController.client.run(request) { (response) in
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group.leave()
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}
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}
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group.notify(queue: .main) {
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self.groups.remove(at: indexPath.row)
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self.tableView.deleteRows(at: [indexPath], with: .automatic)
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completion?()
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}
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}
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@objc func refreshNotifications(_ sender: Any) {
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guard let newer = newer else { return }
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let request = MastodonController.client.getNotifications(excludeTypes: excludedTypes, range: newer)
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MastodonController.client.run(request) { result in
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guard case let .success(newNotifications, pagination) = result else { fatalError() }
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let groups = NotificationGroup.createGroups(notifications: newNotifications, only: self.groupTypes)
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self.groups.insert(contentsOf: groups, at: 0)
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MastodonCache.addAll(notifications: newNotifications)
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MastodonCache.addAll(statuses: newNotifications.compactMap { $0.status })
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MastodonCache.addAll(accounts: newNotifications.map { $0.account })
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if let newer = pagination?.newer {
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self.newer = newer
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}
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DispatchQueue.main.async {
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self.refreshControl?.endRefreshing()
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// maintain the current position in the list (don't scroll to top)
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self.tableView.scrollToRow(at: IndexPath(row: newNotifications.count, section: 0), at: .top, animated: false)
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}
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}
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}
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}
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extension NotificationsTableViewController: StatusTableViewCellDelegate {
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func statusCellCollapsedStateChanged(_ cell: BaseStatusTableViewCell) {
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// causes the table view to recalculate the cell heights
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tableView.beginUpdates()
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tableView.endUpdates()
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}
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}
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extension NotificationsTableViewController: UITableViewDataSourcePrefetching {
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func tableView(_ tableView: UITableView, prefetchRowsAt indexPaths: [IndexPath]) {
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for indexPath in indexPaths {
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for notificationID in groups[indexPath.row].notificationIDs {
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guard let notification = MastodonCache.notification(for: notificationID) else { continue }
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ImageCache.avatars.get(notification.account.avatar, completion: nil)
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}
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}
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}
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func tableView(_ tableView: UITableView, cancelPrefetchingForRowsAt indexPaths: [IndexPath]) {
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for indexPath in indexPaths {
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for notificationID in groups[indexPath.row].notificationIDs {
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guard let notification = MastodonCache.notification(for: notificationID) else { continue }
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ImageCache.avatars.cancel(notification.account.avatar)
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}
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}
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}
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}
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