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