mastodon-ios/Mastodon/Scene/Share/View/Content/ThreadMetaView.swift

124 lines
4.0 KiB
Swift

//
// ThreadMetaView.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-12.
//
import UIKit
final class ThreadMetaView: UIView {
let dateLabel: UILabel = {
let label = UILabel()
label.font = UIFontMetrics(forTextStyle: .body).scaledFont(for: .systemFont(ofSize: 15, weight: .regular))
label.text = "Date"
return label
}()
let reblogButton: UIButton = {
let button = UIButton()
button.titleLabel?.font = UIFontMetrics(forTextStyle: .headline).scaledFont(for: .systemFont(ofSize: 15, weight: .semibold))
button.setTitle("0 reblog", for: .normal)
button.setTitleColor(Asset.Colors.Button.normal.color, for: .normal)
button.setTitleColor(Asset.Colors.Button.normal.color.withAlphaComponent(0.5), for: .highlighted)
return button
}()
let favoriteButton: UIButton = {
let button = UIButton()
button.titleLabel?.font = UIFontMetrics(forTextStyle: .headline).scaledFont(for: .systemFont(ofSize: 15, weight: .semibold))
button.setTitle("0 favorite", for: .normal)
button.setTitleColor(Asset.Colors.Button.normal.color, for: .normal)
button.setTitleColor(Asset.Colors.Button.normal.color.withAlphaComponent(0.5), for: .highlighted)
return button
}()
let containerStackView: UIStackView = {
let stackView = UIStackView()
stackView.axis = .horizontal
stackView.spacing = 20
return stackView
}()
let actionButtonStackView = UIStackView()
override init(frame: CGRect) {
super.init(frame: frame)
_init()
}
required init?(coder: NSCoder) {
super.init(coder: coder)
_init()
}
}
extension ThreadMetaView {
private func _init() {
containerStackView.translatesAutoresizingMaskIntoConstraints = false
addSubview(containerStackView)
NSLayoutConstraint.activate([
containerStackView.topAnchor.constraint(equalTo: topAnchor, constant: 8),
containerStackView.leadingAnchor.constraint(equalTo: leadingAnchor),
containerStackView.trailingAnchor.constraint(equalTo: trailingAnchor),
bottomAnchor.constraint(equalTo: containerStackView.bottomAnchor, constant: 12),
])
containerStackView.addArrangedSubview(dateLabel)
containerStackView.addArrangedSubview(actionButtonStackView)
actionButtonStackView.axis = .horizontal
actionButtonStackView.spacing = 20
actionButtonStackView.addArrangedSubview(reblogButton)
actionButtonStackView.addArrangedSubview(favoriteButton)
dateLabel.setContentHuggingPriority(.defaultLow, for: .horizontal)
reblogButton.setContentHuggingPriority(.required - 2, for: .horizontal)
favoriteButton.setContentHuggingPriority(.required - 1, for: .horizontal)
updateContainerLayout()
// TODO:
reblogButton.isAccessibilityElement = false
favoriteButton.isAccessibilityElement = false
}
override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
super.traitCollectionDidChange(previousTraitCollection)
updateContainerLayout()
}
private func updateContainerLayout() {
if traitCollection.preferredContentSizeCategory < .accessibilityMedium {
containerStackView.axis = .horizontal
containerStackView.spacing = 20
dateLabel.numberOfLines = 1
} else {
containerStackView.axis = .vertical
containerStackView.spacing = 4
dateLabel.numberOfLines = 0
}
}
}
#if canImport(SwiftUI) && DEBUG
import SwiftUI
struct ThreadMetaView_Previews: PreviewProvider {
static var previews: some View {
UIViewPreview(width: 375) {
ThreadMetaView()
}
.previewLayout(.fixed(width: 375, height: 100))
}
}
#endif