metatext/Views/ConversationView.swift

100 lines
3.7 KiB
Swift
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2020-10-29 06:03:45 +00:00
// Copyright © 2020 Metabolist. All rights reserved.
import UIKit
final class ConversationView: UIView {
let avatarsView = ConversationAvatarsView()
let displayNamesLabel = UILabel()
let statusBodyView = StatusBodyView()
private var conversationConfiguration: ConversationContentConfiguration
init(configuration: ConversationContentConfiguration) {
conversationConfiguration = configuration
super.init(frame: .zero)
initialSetup()
applyConversationConfiguration()
}
@available(*, unavailable)
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
extension ConversationView: UIContentView {
var configuration: UIContentConfiguration {
get { conversationConfiguration }
set {
guard let conversationConfiguration = newValue as? ConversationContentConfiguration else { return }
self.conversationConfiguration = conversationConfiguration
applyConversationConfiguration()
}
}
}
private extension ConversationView {
func initialSetup() {
let containerStackView = UIStackView()
let sideStackView = UIStackView()
let mainStackView = UIStackView()
addSubview(containerStackView)
containerStackView.translatesAutoresizingMaskIntoConstraints = false
containerStackView.spacing = .defaultSpacing
sideStackView.axis = .vertical
sideStackView.alignment = .trailing
sideStackView.spacing = .compactSpacing
sideStackView.addArrangedSubview(avatarsView)
sideStackView.addArrangedSubview(UIView())
containerStackView.addArrangedSubview(sideStackView)
mainStackView.axis = .vertical
mainStackView.spacing = .compactSpacing
mainStackView.addArrangedSubview(displayNamesLabel)
mainStackView.addSubview(UIView())
mainStackView.addArrangedSubview(statusBodyView)
containerStackView.addArrangedSubview(mainStackView)
displayNamesLabel.font = .preferredFont(forTextStyle: .headline)
displayNamesLabel.adjustsFontForContentSizeCategory = true
statusBodyView.alpha = 0.5
statusBodyView.isUserInteractionEnabled = false
let avatarsHeightConstraint = avatarsView.heightAnchor.constraint(equalToConstant: .avatarDimension)
avatarsHeightConstraint.priority = .justBelowMax
NSLayoutConstraint.activate([
containerStackView.leadingAnchor.constraint(equalTo: readableContentGuide.leadingAnchor),
containerStackView.topAnchor.constraint(equalTo: readableContentGuide.topAnchor),
containerStackView.trailingAnchor.constraint(equalTo: readableContentGuide.trailingAnchor),
containerStackView.bottomAnchor.constraint(equalTo: readableContentGuide.bottomAnchor),
avatarsView.widthAnchor.constraint(equalToConstant: .avatarDimension),
avatarsHeightConstraint,
sideStackView.widthAnchor.constraint(equalToConstant: .avatarDimension)
])
}
func applyConversationConfiguration() {
let viewModel = conversationConfiguration.viewModel
let displayNames = ListFormatter.localizedString(byJoining: viewModel.accountViewModels.map(\.displayName))
let mutableDisplayNames = NSMutableAttributedString(string: displayNames)
mutableDisplayNames.insert(
emoji: viewModel.accountViewModels.map(\.emoji).reduce([], +),
view: displayNamesLabel)
mutableDisplayNames.resizeAttachments(toLineHeight: displayNamesLabel.font.lineHeight)
displayNamesLabel.attributedText = mutableDisplayNames
statusBodyView.viewModel = viewModel.statusViewModel
avatarsView.viewModel = viewModel
}
}