Tusker/Tusker/Views/Status/TimelineStatusTableViewCell...

400 lines
15 KiB
Swift
Raw Normal View History

//
// TimelineStatusTableViewCell.swift
// Tusker
//
// Created by Shadowfacts on 8/16/18.
// Copyright © 2018 Shadowfacts. All rights reserved.
//
import UIKit
import Combine
import Pachyderm
class TimelineStatusTableViewCell: BaseStatusTableViewCell {
static let relativeDateFormatter: RelativeDateTimeFormatter = {
let formatter = RelativeDateTimeFormatter()
formatter.dateTimeStyle = .numeric
formatter.unitsStyle = .full
return formatter
}()
@IBOutlet weak var reblogLabel: EmojiLabel!
@IBOutlet weak var reblogSpacer: UIView!
@IBOutlet weak var timestampLabel: UILabel!
@IBOutlet weak var pinImageView: UIImageView!
@IBOutlet weak var actionsContainerView: UIView!
@IBOutlet weak var actionsContainerHeightConstraint: NSLayoutConstraint!
@IBOutlet weak var verticalStackToActionsContainerConstraint: NSLayoutConstraint!
@IBOutlet weak var verticalStackToSuperviewConstraint: NSLayoutConstraint!
var reblogStatusID: String?
var rebloggerID: String?
var showPinned = false
var showReplyIndicator = true
var updateTimestampWorkItem: DispatchWorkItem?
var rebloggerAccountUpdater: Cancellable?
deinit {
rebloggerAccountUpdater?.cancel()
updateTimestampWorkItem?.cancel()
}
override func awakeFromNib() {
super.awakeFromNib()
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isAccessibilityElement = true
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reblogLabel.font = .preferredFont(forTextStyle: .body)
reblogLabel.adjustsFontForContentSizeCategory = true
reblogLabel.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(reblogLabelPressed)))
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avatarImageView.addInteraction(UIContextMenuInteraction(delegate: self))
displayNameLabel.font = UIFont(descriptor: .preferredFontDescriptor(withTextStyle: .body).addingAttributes([
.traits: [
UIFontDescriptor.TraitKey.weight: UIFont.Weight.semibold.rawValue,
]
]), size: 0)
displayNameLabel.adjustsFontForContentSizeCategory = true
usernameLabel.font = UIFont(descriptor: .preferredFontDescriptor(withTextStyle: .body).addingAttributes([
.traits: [
UIFontDescriptor.TraitKey.weight: UIFont.Weight.light.rawValue,
]
]), size: 0)
usernameLabel.adjustsFontForContentSizeCategory = true
timestampLabel.font = UIFont(descriptor: .preferredFontDescriptor(withTextStyle: .body).addingAttributes([
.traits: [
UIFontDescriptor.TraitKey.weight: UIFont.Weight.light.rawValue,
]
]), size: 0)
timestampLabel.adjustsFontForContentSizeCategory = true
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metaIndicatorsView.primaryAxis = .vertical
metaIndicatorsView.secondaryAxisAlignment = .trailing
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contentWarningLabel.font = UIFont(descriptor: .preferredFontDescriptor(withTextStyle: .body).addingAttributes([
.traits: [
UIFontDescriptor.TraitKey.weight: UIFont.Weight.bold.rawValue,
]
]), size: 0)
contentWarningLabel.adjustsFontForContentSizeCategory = true
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contentTextView.defaultFont = UIFontMetrics(forTextStyle: .body).scaledFont(for: .systemFont(ofSize: 16))
contentTextView.adjustsFontForContentSizeCategory = true
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// todo: double check this on RTL layouts
replyButton.imageView!.leadingAnchor.constraint(equalTo: contentTextView.leadingAnchor).isActive = true
updateActionsVisibility()
}
override func createObserversIfNecessary() {
super.createObserversIfNecessary()
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if rebloggerAccountUpdater == nil {
rebloggerAccountUpdater = mastodonController.persistentContainer.accountSubject
.receive(on: DispatchQueue.main)
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.filter { [unowned self] in $0 == self.rebloggerID }
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.sink { [unowned self] in
if let mastodonController = self.mastodonController,
let reblogger = mastodonController.persistentContainer.account(for: $0) {
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self.updateRebloggerLabel(reblogger: reblogger)
}
}
}
}
override func doUpdateUI(status: StatusMO, state: StatusState) {
var status = status
if let rebloggedStatus = status.reblog {
reblogStatusID = statusID
rebloggerID = status.account.id
reblogLabel.isHidden = false
reblogSpacer.isHidden = false
updateRebloggerLabel(reblogger: status.account)
status = rebloggedStatus
// necessary b/c statusID is initially set to the reblog status ID in updateUI(statusID:state:)
statusID = rebloggedStatus.id
} else {
reblogStatusID = nil
rebloggerID = nil
reblogLabel.isHidden = true
reblogSpacer.isHidden = true
}
super.doUpdateUI(status: status, state: state)
doUpdateTimestamp(status: status)
timestampLabel.isHidden = showPinned
pinImageView.isHidden = !showPinned
}
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override func updateGrayscaleableUI(account: AccountMO, status: StatusMO) {
super.updateGrayscaleableUI(account: account, status: status)
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if let rebloggerID = rebloggerID,
reblogLabel.hasEmojis,
let reblogger = mastodonController.persistentContainer.account(for: rebloggerID) {
updateRebloggerLabel(reblogger: reblogger)
}
}
private func updateRebloggerLabel(reblogger: AccountMO) {
if Preferences.shared.hideCustomEmojiInUsernames {
reblogLabel.text = "Reblogged by \(reblogger.displayNameWithoutCustomEmoji)"
reblogLabel.removeEmojis()
} else {
reblogLabel.text = "Reblogged by \(reblogger.displayOrUserName)"
reblogLabel.setEmojis(reblogger.emojis, identifier: reblogger.id)
}
}
override func updateStatusIconsForPreferences(_ status: StatusMO) {
if showReplyIndicator {
metaIndicatorsView.allowedIndicators = .all
} else {
metaIndicatorsView.allowedIndicators = .all.subtracting(.reply)
}
let oldState = actionsContainerView.isHidden
if oldState != Preferences.shared.hideActionsInTimeline {
updateActionsVisibility()
if #available(iOS 16.0, *) {
invalidateIntrinsicContentSize()
} else {
// not really accurate, but it notifies the vc our height has changed
delegate?.statusCellCollapsedStateChanged(self)
}
}
super.updateStatusIconsForPreferences(status)
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}
private func updateActionsVisibility() {
if Preferences.shared.hideActionsInTimeline {
actionsContainerView.isHidden = true
} else {
actionsContainerView.isHidden = false
}
}
private func updateTimestamp() {
// if the mastodonController is nil (i.e. the delegate is nil), then the screen this cell was a part of has been deallocated
// so we bail out immediately, since there's nothing to update
// if the status cannot be found, it may have already been discarded due to not being on screen, so we do nothing
guard let mastodonController = mastodonController,
let status = mastodonController.persistentContainer.status(for: statusID) else { return }
doUpdateTimestamp(status: status)
}
private func doUpdateTimestamp(status: StatusMO) {
timestampLabel.text = status.createdAt.timeAgoString()
let delay: DispatchTimeInterval?
switch status.createdAt.timeAgo().1 {
case .second:
delay = .seconds(10)
case .minute:
delay = .seconds(60)
default:
delay = nil
}
if let delay = delay {
if updateTimestampWorkItem == nil {
updateTimestampWorkItem = DispatchWorkItem { [weak self] in
self?.updateTimestamp()
}
}
DispatchQueue.main.asyncAfter(deadline: .now() + delay, execute: updateTimestampWorkItem!)
} else {
updateTimestampWorkItem = nil
}
}
func reply() {
if Preferences.shared.mentionReblogger,
let rebloggerID = rebloggerID,
let rebloggerAccount = mastodonController.persistentContainer.account(for: rebloggerID) {
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delegate?.compose(inReplyToID: statusID, mentioningAcct: rebloggerAccount.acct)
} else {
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delegate?.compose(inReplyToID: statusID)
}
}
override func prepareForReuse() {
super.prepareForReuse()
updateTimestampWorkItem?.cancel()
updateTimestampWorkItem = nil
showPinned = false
}
@objc func reblogLabelPressed() {
guard let rebloggerID = rebloggerID else { return }
delegate?.selected(account: rebloggerID)
}
override func replyPressed() {
reply()
}
// MARK: - Accessibility
override var accessibilityAttributedLabel: NSAttributedString? {
get {
guard let status = mastodonController.persistentContainer.status(for: statusID) else {
return nil
}
var str = AttributedString("\(status.account.displayOrUserName), ")
if statusState.collapsed ?? false {
if !status.spoilerText.isEmpty {
str += AttributedString(status.spoilerText)
str += ", "
}
str += "collapsed"
} else {
str += AttributedString(contentTextView.attributedText)
}
if status.attachments.count > 0 {
// TODO: localize me
str += AttributedString(", \(status.attachments.count) attachment\(status.attachments.count > 1 ? "s" : "")")
}
if status.poll != nil {
str += ", poll"
}
str += AttributedString(", \(status.createdAt.formatted(.relative(presentation: .numeric)))")
if status.visibility < .unlisted {
str += AttributedString(", \(status.visibility.displayName)")
}
if status.localOnly {
str += ", local"
}
if let rebloggerID,
let reblogger = mastodonController.persistentContainer.account(for: rebloggerID) {
str += AttributedString(", reblogged by \(reblogger.displayOrUserName)")
}
return NSAttributedString(str)
}
set {}
}
override var accessibilityHint: String? {
get {
if statusState.collapsed ?? false {
return "Double tap to expand the post."
} else {
return nil
}
}
set {}
}
override func accessibilityActivate() -> Bool {
if statusState.collapsed ?? false {
collapseButtonPressed()
} else {
didSelectCell()
}
return true
}
}
extension TimelineStatusTableViewCell: SelectableTableViewCell {
func didSelectCell() {
delegate?.selected(status: statusID, state: statusState.copy())
}
}
extension TimelineStatusTableViewCell: TableViewSwipeActionProvider {
func leadingSwipeActionsConfiguration() -> UISwipeActionsConfiguration? {
guard let status = mastodonController.persistentContainer.status(for: statusID) else {
return nil
}
return UISwipeActionsConfiguration(actions: Preferences.shared.leadingStatusSwipeActions.compactMap { $0.createAction(status: status, container: self) })
}
func trailingSwipeActionsConfiguration() -> UISwipeActionsConfiguration? {
guard let status = mastodonController.persistentContainer.status(for: statusID) else {
return nil
}
return UISwipeActionsConfiguration(actions: Preferences.shared.trailingStatusSwipeActions.compactMap { $0.createAction(status: status, container: self) })
}
}
extension TimelineStatusTableViewCell: DraggableTableViewCell {
func dragItemsForBeginning(session: UIDragSession) -> [UIDragItem] {
// the poll options view is tracking while the user is dragging between options
// while that's happening, don't initiate a drag
guard let status = mastodonController.persistentContainer.status(for: statusID),
let accountID = mastodonController.accountInfo?.id,
!pollView.isTracking else {
return []
}
let provider = NSItemProvider(object: status.url! as NSURL)
let activity = UserActivityManager.showConversationActivity(mainStatusID: status.id, accountID: accountID)
activity.displaysAuxiliaryScene = true
provider.registerObject(activity, visibility: .all)
return [UIDragItem(itemProvider: provider)]
}
}
extension TimelineStatusTableViewCell: UIContextMenuInteractionDelegate {
func contextMenuInteraction(_ interaction: UIContextMenuInteraction, configurationForMenuAtLocation location: CGPoint) -> UIContextMenuConfiguration? {
return UIContextMenuConfiguration(identifier: nil) {
ProfileViewController(accountID: self.accountID, mastodonController: self.mastodonController)
} actionProvider: { (_) in
return UIMenu(title: "", image: nil, identifier: nil, options: [], children: self.delegate?.actionsForProfile(accountID: self.accountID, sourceView: self.avatarImageView) ?? [])
}
}
func contextMenuInteraction(_ interaction: UIContextMenuInteraction, willPerformPreviewActionForMenuWith configuration: UIContextMenuConfiguration, animator: UIContextMenuInteractionCommitAnimating) {
if let viewController = animator.previewViewController,
let delegate = delegate {
animator.preferredCommitStyle = .pop
animator.addCompletion {
if let customPresenting = viewController as? CustomPreviewPresenting {
customPresenting.presentFromPreview(presenter: delegate)
} else {
delegate.show(viewController)
}
}
}
}
}
extension TimelineStatusTableViewCell: MenuPreviewProvider {
func getPreviewProviders(for location: CGPoint, sourceViewController: UIViewController) -> PreviewProviders? {
guard let mastodonController = mastodonController,
let status = mastodonController.persistentContainer.status(for: statusID) else {
return nil
}
return (
content: { ConversationTableViewController(for: self.statusID, state: self.statusState.copy(), mastodonController: mastodonController) },
actions: { self.delegate?.actionsForStatus(status, sourceView: self) ?? [] }
)
}
}
extension TimelineStatusTableViewCell: StatusSwipeActionContainer {
var navigationDelegate: TuskerNavigationDelegate { delegate! }
var toastableViewController: ToastableViewController? { delegate }
func performReplyAction() {
self.replyPressed()
}
}