249 lines
12 KiB
Swift
249 lines
12 KiB
Swift
import UIKit
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final class ConversationCell : UITableViewCell {
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var threadViewModel: ThreadViewModel! { didSet { update() } }
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static let reuseIdentifier = "ConversationCell"
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// MARK: UI Components
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private let accentLineView = UIView()
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private lazy var profilePictureView = ProfilePictureView()
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private lazy var displayNameLabel: UILabel = {
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let result = UILabel()
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result.font = .boldSystemFont(ofSize: Values.mediumFontSize)
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result.textColor = Colors.text
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result.lineBreakMode = .byTruncatingTail
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return result
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}()
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private lazy var unreadCountView: UIView = {
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let result = UIView()
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result.backgroundColor = Colors.text.withAlphaComponent(Values.veryLowOpacity)
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let size = ConversationCell.unreadCountViewSize
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result.set(.width, to: size)
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result.set(.height, to: size)
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result.layer.masksToBounds = true
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result.layer.cornerRadius = size / 2
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return result
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}()
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private lazy var unreadCountLabel: UILabel = {
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let result = UILabel()
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result.font = .boldSystemFont(ofSize: Values.verySmallFontSize)
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result.textColor = Colors.text
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result.textAlignment = .center
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return result
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}()
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private lazy var timestampLabel: UILabel = {
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let result = UILabel()
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result.font = .systemFont(ofSize: Values.smallFontSize)
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result.textColor = Colors.text
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result.lineBreakMode = .byTruncatingTail
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result.alpha = Values.lowOpacity
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return result
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}()
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private lazy var snippetLabel: UILabel = {
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let result = UILabel()
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result.font = .systemFont(ofSize: Values.smallFontSize)
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result.textColor = Colors.text
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result.lineBreakMode = .byTruncatingTail
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return result
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}()
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private lazy var typingIndicatorView = TypingIndicatorView()
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private lazy var statusIndicatorView: UIImageView = {
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let result = UIImageView()
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result.contentMode = .scaleAspectFit
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result.layer.cornerRadius = ConversationCell.statusIndicatorSize / 2
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result.layer.masksToBounds = true
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return result
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}()
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// MARK: Settings
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private static let unreadCountViewSize: CGFloat = 20
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private static let statusIndicatorSize: CGFloat = 14
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// MARK: Initialization
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override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
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super.init(style: style, reuseIdentifier: reuseIdentifier)
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setUpViewHierarchy()
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}
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required init?(coder: NSCoder) {
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super.init(coder: coder)
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setUpViewHierarchy()
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}
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private func setUpViewHierarchy() {
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let cellHeight: CGFloat = 68
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// Background color
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backgroundColor = Colors.cellBackground
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// Highlight color
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let selectedBackgroundView = UIView()
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selectedBackgroundView.backgroundColor = Colors.cellSelected
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self.selectedBackgroundView = selectedBackgroundView
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// Accent line view
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accentLineView.set(.width, to: Values.accentLineThickness)
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accentLineView.set(.height, to: cellHeight)
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// Profile picture view
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let profilePictureViewSize = Values.mediumProfilePictureSize
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profilePictureView.set(.width, to: profilePictureViewSize)
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profilePictureView.set(.height, to: profilePictureViewSize)
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profilePictureView.size = profilePictureViewSize
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// Unread count view
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unreadCountView.addSubview(unreadCountLabel)
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unreadCountLabel.pin(to: unreadCountView)
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// Label stack view
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let topLabelSpacer = UIView.hStretchingSpacer()
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let topLabelStackView = UIStackView(arrangedSubviews: [ displayNameLabel, unreadCountView, topLabelSpacer, timestampLabel ])
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topLabelStackView.axis = .horizontal
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topLabelStackView.alignment = .center
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topLabelStackView.spacing = Values.smallSpacing / 2 // Effectively Values.smallSpacing because there'll be spacing before and after the invisible spacer
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let snippetLabelContainer = UIView()
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snippetLabelContainer.addSubview(snippetLabel)
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snippetLabelContainer.addSubview(typingIndicatorView)
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let bottomLabelSpacer = UIView.hStretchingSpacer()
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let bottomLabelStackView = UIStackView(arrangedSubviews: [ snippetLabelContainer, bottomLabelSpacer, statusIndicatorView ])
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bottomLabelStackView.axis = .horizontal
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bottomLabelStackView.alignment = .center
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bottomLabelStackView.spacing = Values.smallSpacing / 2 // Effectively Values.smallSpacing because there'll be spacing before and after the invisible spacer
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let labelContainerView = UIView()
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labelContainerView.addSubview(topLabelStackView)
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labelContainerView.addSubview(bottomLabelStackView)
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// Main stack view
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let stackView = UIStackView(arrangedSubviews: [ accentLineView, profilePictureView, labelContainerView ])
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stackView.axis = .horizontal
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stackView.alignment = .center
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stackView.spacing = Values.mediumSpacing
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contentView.addSubview(stackView)
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// Constraints
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accentLineView.pin(.top, to: .top, of: contentView)
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accentLineView.pin(.bottom, to: .bottom, of: contentView)
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timestampLabel.setContentCompressionResistancePriority(.required, for: NSLayoutConstraint.Axis.horizontal)
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// HACK: The six lines below are part of a workaround for a weird layout bug
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topLabelStackView.set(.width, to: UIScreen.main.bounds.width - Values.accentLineThickness - profilePictureViewSize - 3 * Values.mediumSpacing)
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topLabelStackView.set(.height, to: 20)
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topLabelSpacer.set(.height, to: 20)
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bottomLabelStackView.set(.width, to: UIScreen.main.bounds.width - Values.accentLineThickness - profilePictureViewSize - 3 * Values.mediumSpacing)
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bottomLabelStackView.set(.height, to: 18)
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bottomLabelSpacer.set(.height, to: 18)
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statusIndicatorView.set(.width, to: ConversationCell.statusIndicatorSize)
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statusIndicatorView.set(.height, to: ConversationCell.statusIndicatorSize)
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snippetLabel.pin(to: snippetLabelContainer)
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typingIndicatorView.pin(.leading, to: .leading, of: snippetLabelContainer)
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typingIndicatorView.centerYAnchor.constraint(equalTo: snippetLabel.centerYAnchor).isActive = true
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// HACK: Not using a stack view for this is part of a workaround for a weird layout bug
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topLabelStackView.pin(.leading, to: .leading, of: labelContainerView)
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topLabelStackView.pin(.top, to: .top, of: labelContainerView, withInset: 12)
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topLabelStackView.pin(.trailing, to: .trailing, of: labelContainerView)
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bottomLabelStackView.pin(.leading, to: .leading, of: labelContainerView)
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bottomLabelStackView.pin(.top, to: .bottom, of: topLabelStackView, withInset: 6)
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labelContainerView.pin(.bottom, to: .bottom, of: bottomLabelStackView, withInset: 12)
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// HACK: The two lines below are part of a workaround for a weird layout bug
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labelContainerView.set(.width, to: UIScreen.main.bounds.width - Values.accentLineThickness - Values.mediumSpacing - profilePictureViewSize - Values.mediumSpacing - Values.mediumSpacing)
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labelContainerView.set(.height, to: cellHeight)
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stackView.pin(.leading, to: .leading, of: contentView)
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stackView.pin(.top, to: .top, of: contentView)
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// HACK: The two lines below are part of a workaround for a weird layout bug
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stackView.set(.width, to: UIScreen.main.bounds.width - Values.mediumSpacing)
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stackView.set(.height, to: cellHeight)
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}
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// MARK: Updating
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private func update() {
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AssertIsOnMainThread()
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guard let thread = threadViewModel?.threadRecord, let threadID = thread.uniqueId else { return }
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MentionsManager.populateUserPublicKeyCacheIfNeeded(for: threadID) // FIXME: This is a terrible place to do this
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let isBlocked: Bool
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if let thread = thread as? TSContactThread {
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isBlocked = SSKEnvironment.shared.blockingManager.isRecipientIdBlocked(thread.contactSessionID())
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} else {
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isBlocked = false
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}
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if isBlocked {
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accentLineView.backgroundColor = Colors.destructive
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accentLineView.alpha = 1
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} else {
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accentLineView.backgroundColor = Colors.accent
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accentLineView.alpha = threadViewModel.hasUnreadMessages ? 1 : 0.0001 // Setting the alpha to exactly 0 causes an issue on iOS 12
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}
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unreadCountView.isHidden = !threadViewModel.hasUnreadMessages
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let unreadCount = threadViewModel.unreadCount
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unreadCountLabel.text = unreadCount < 100 ? "\(unreadCount)" : "99+"
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let fontSize = (unreadCount < 100) ? Values.verySmallFontSize : 8
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unreadCountLabel.font = .boldSystemFont(ofSize: fontSize)
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profilePictureView.update(for: thread)
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displayNameLabel.text = getDisplayName()
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timestampLabel.text = DateUtil.formatDate(forDisplay: threadViewModel.lastMessageDate)
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if SSKEnvironment.shared.typingIndicators.typingRecipientId(forThread: thread) != nil {
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snippetLabel.text = ""
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typingIndicatorView.isHidden = false
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typingIndicatorView.startAnimation()
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} else {
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snippetLabel.attributedText = getSnippet()
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typingIndicatorView.isHidden = true
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typingIndicatorView.stopAnimation()
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}
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statusIndicatorView.backgroundColor = nil
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let lastMessage = threadViewModel.lastMessageForInbox
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if let lastMessage = lastMessage as? TSOutgoingMessage {
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let image: UIImage
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let status = MessageRecipientStatusUtils.recipientStatus(outgoingMessage: lastMessage)
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switch status {
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case .uploading, .sending: image = #imageLiteral(resourceName: "CircleDotDotDot").asTintedImage(color: Colors.text)!
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case .sent, .skipped, .delivered: image = #imageLiteral(resourceName: "CircleCheck").asTintedImage(color: Colors.text)!
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case .read:
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statusIndicatorView.backgroundColor = isLightMode ? .black : .white
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image = isLightMode ? #imageLiteral(resourceName: "FilledCircleCheckLightMode") : #imageLiteral(resourceName: "FilledCircleCheckDarkMode")
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case .failed: image = #imageLiteral(resourceName: "message_status_failed").asTintedImage(color: Colors.text)!
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}
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statusIndicatorView.image = image
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statusIndicatorView.isHidden = false
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} else {
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statusIndicatorView.isHidden = true
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}
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}
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private func getDisplayName() -> String {
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if threadViewModel.isGroupThread {
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if threadViewModel.name.isEmpty {
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return "Unknown Group"
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} else {
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return threadViewModel.name
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}
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} else {
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if threadViewModel.threadRecord.isNoteToSelf() {
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return NSLocalizedString("NOTE_TO_SELF", comment: "")
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} else {
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let hexEncodedPublicKey = threadViewModel.contactSessionID!
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return Storage.shared.getContact(with: hexEncodedPublicKey)?.displayName(for: .regular) ?? hexEncodedPublicKey
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}
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}
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}
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private func getSnippet() -> NSMutableAttributedString {
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let result = NSMutableAttributedString()
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if threadViewModel.isMuted {
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result.append(NSAttributedString(string: "\u{e067} ", attributes: [ .font : UIFont.ows_elegantIconsFont(10), .foregroundColor : Colors.unimportant ]))
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} else if threadViewModel.isOnlyNotifyingForMentions {
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let imageAttachment = NSTextAttachment()
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imageAttachment.image = UIImage(named: "NotifyMentions.png")?.asTintedImage(color: Colors.unimportant)
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imageAttachment.bounds = CGRect(x: 0, y: -2, width: Values.smallFontSize, height: Values.smallFontSize)
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let imageString = NSAttributedString(attachment: imageAttachment)
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result.append(imageString)
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result.append(NSAttributedString(string: " ", attributes: [ .font : UIFont.ows_elegantIconsFont(10), .foregroundColor : Colors.unimportant ]))
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}
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if let rawSnippet = threadViewModel.lastMessageText {
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let snippet = MentionUtilities.highlightMentions(in: rawSnippet, threadID: threadViewModel.threadRecord.uniqueId!)
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let font = threadViewModel.hasUnreadMessages ? UIFont.boldSystemFont(ofSize: Values.smallFontSize) : UIFont.systemFont(ofSize: Values.smallFontSize)
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result.append(NSAttributedString(string: snippet, attributes: [ .font : font, .foregroundColor : Colors.text ]))
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}
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return result
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}
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}
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