metatext/Views/UIKit/Content Views/AnnouncementReactionView.swift

99 lines
3.6 KiB
Swift
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2021-04-25 19:38:36 +00:00
// Copyright © 2021 Metabolist. All rights reserved.
import SDWebImage
import UIKit
import ViewModels
final class AnnouncementReactionView: UIView {
private let nameLabel = UILabel()
private let imageView = SDAnimatedImageView()
private let countLabel = UILabel()
private var announcementReactionConfiguration: AnnouncementReactionContentConfiguration
init(configuration: AnnouncementReactionContentConfiguration) {
announcementReactionConfiguration = configuration
super.init(frame: .zero)
initialSetup()
applyAnnouncementReactionConfiguration()
}
@available(*, unavailable)
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
extension AnnouncementReactionView: UIContentView {
var configuration: UIContentConfiguration {
get { announcementReactionConfiguration }
set {
guard let announcementReactionConfiguration = newValue as? AnnouncementReactionContentConfiguration else {
return
}
self.announcementReactionConfiguration = announcementReactionConfiguration
applyAnnouncementReactionConfiguration()
}
}
}
private extension AnnouncementReactionView {
static let meBackgroundColor = UIColor.link.withAlphaComponent(0.5)
static let backgroundColor = UIColor.secondarySystemBackground.withAlphaComponent(0.5)
func initialSetup() {
layer.cornerRadius = .defaultCornerRadius
let stackView = UIStackView()
addSubview(stackView)
stackView.translatesAutoresizingMaskIntoConstraints = false
stackView.spacing = .defaultSpacing
stackView.addArrangedSubview(imageView)
imageView.contentMode = .scaleAspectFit
stackView.addArrangedSubview(nameLabel)
nameLabel.adjustsFontForContentSizeCategory = true
nameLabel.textAlignment = .center
nameLabel.adjustsFontSizeToFitWidth = true
nameLabel.font = .preferredFont(forTextStyle: .body)
stackView.addArrangedSubview(countLabel)
countLabel.adjustsFontForContentSizeCategory = true
countLabel.font = .preferredFont(forTextStyle: .headline)
countLabel.textColor = .link
NSLayoutConstraint.activate([
stackView.leadingAnchor.constraint(equalTo: layoutMarginsGuide.leadingAnchor),
stackView.topAnchor.constraint(equalTo: layoutMarginsGuide.topAnchor),
stackView.trailingAnchor.constraint(equalTo: layoutMarginsGuide.trailingAnchor),
stackView.bottomAnchor.constraint(equalTo: layoutMarginsGuide.bottomAnchor),
imageView.widthAnchor.constraint(equalToConstant: .minimumButtonDimension / 2),
imageView.heightAnchor.constraint(equalToConstant: .minimumButtonDimension / 2),
nameLabel.widthAnchor.constraint(equalToConstant: .minimumButtonDimension / 2),
nameLabel.heightAnchor.constraint(equalToConstant: .minimumButtonDimension / 2)
])
isAccessibilityElement = true
}
func applyAnnouncementReactionConfiguration() {
let viewModel = announcementReactionConfiguration.viewModel
backgroundColor = viewModel.me ? Self.meBackgroundColor : Self.backgroundColor
nameLabel.text = viewModel.name
nameLabel.isHidden = viewModel.url != nil
imageView.sd_setImage(with: viewModel.url)
imageView.isHidden = viewModel.url == nil
countLabel.text = String(viewModel.count)
accessibilityLabel = viewModel.name.appendingWithSeparator(String(viewModel.count))
}
}