116 lines
4.1 KiB
Swift
116 lines
4.1 KiB
Swift
// Copyright © 2022 Rangeproof Pty Ltd. All rights reserved.
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import UIKit
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import SessionUIKit
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import SessionMessagingKit
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final class InfoMessageCell: MessageCell {
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private static let iconSize: CGFloat = 16
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private static let inset = Values.mediumSpacing
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private var isHandlingLongPress: Bool = false
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override var contextSnapshotView: UIView? { return label }
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// MARK: - UI
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private lazy var iconImageViewWidthConstraint = iconImageView.set(.width, to: InfoMessageCell.iconSize)
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private lazy var iconImageViewHeightConstraint = iconImageView.set(.height, to: InfoMessageCell.iconSize)
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private lazy var iconImageView: UIImageView = UIImageView()
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private lazy var label: UILabel = {
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let result: UILabel = UILabel()
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result.font = .boldSystemFont(ofSize: Values.verySmallFontSize)
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result.themeTextColor = .textPrimary
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result.textAlignment = .center
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result.lineBreakMode = .byWordWrapping
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result.numberOfLines = 0
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return result
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}()
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private lazy var stackView: UIStackView = {
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let result: UIStackView = UIStackView(arrangedSubviews: [ iconImageView, label ])
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result.axis = .vertical
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result.alignment = .center
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result.spacing = Values.smallSpacing
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return result
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}()
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// MARK: - Lifecycle
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override func setUpViewHierarchy() {
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super.setUpViewHierarchy()
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iconImageViewWidthConstraint.isActive = true
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iconImageViewHeightConstraint.isActive = true
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addSubview(stackView)
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stackView.pin(.left, to: .left, of: self, withInset: InfoMessageCell.inset)
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stackView.pin(.top, to: .top, of: self, withInset: InfoMessageCell.inset)
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stackView.pin(.right, to: .right, of: self, withInset: -InfoMessageCell.inset)
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stackView.pin(.bottom, to: .bottom, of: self, withInset: -InfoMessageCell.inset)
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}
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override func setUpGestureRecognizers() {
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let longPressRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(handleLongPress))
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addGestureRecognizer(longPressRecognizer)
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}
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// MARK: - Updating
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override func update(
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with cellViewModel: MessageViewModel,
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mediaCache: NSCache<NSString, AnyObject>,
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playbackInfo: ConversationViewModel.PlaybackInfo?,
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showExpandedReactions: Bool,
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lastSearchText: String?
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) {
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guard cellViewModel.variant.isInfoMessage else { return }
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self.viewModel = cellViewModel
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let icon: UIImage? = {
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switch cellViewModel.variant {
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case .infoDisappearingMessagesUpdate:
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return (cellViewModel.threadHasDisappearingMessagesEnabled ?
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UIImage(named: "ic_timer") :
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UIImage(named: "ic_timer_disabled")
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)
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case .infoMediaSavedNotification: return UIImage(named: "ic_download")
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default: return nil
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}
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}()
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if let icon = icon {
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iconImageView.image = icon.withRenderingMode(.alwaysTemplate)
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iconImageView.themeTintColor = .textPrimary
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}
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iconImageViewWidthConstraint.constant = (icon != nil) ? InfoMessageCell.iconSize : 0
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iconImageViewHeightConstraint.constant = (icon != nil) ? InfoMessageCell.iconSize : 0
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self.label.text = cellViewModel.body
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}
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override func dynamicUpdate(with cellViewModel: MessageViewModel, playbackInfo: ConversationViewModel.PlaybackInfo?) {
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}
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// MARK: - Interaction
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@objc func handleLongPress(_ gestureRecognizer: UITapGestureRecognizer) {
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if [ .ended, .cancelled, .failed ].contains(gestureRecognizer.state) {
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isHandlingLongPress = false
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return
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}
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guard !isHandlingLongPress, let cellViewModel: MessageViewModel = self.viewModel else { return }
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delegate?.handleItemLongPressed(cellViewModel)
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isHandlingLongPress = true
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}
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}
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