forked from zelo72/mastodon-ios
134 lines
3.7 KiB
Swift
134 lines
3.7 KiB
Swift
//
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// AppearanceView.swift
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// Mastodon
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//
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// Created by MainasuK Cirno on 2021-7-6.
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//
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import UIKit
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import MastodonAsset
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import MastodonLocalization
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class AppearanceView: UIView {
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lazy var imageView: UIImageView = {
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let view = UIImageView()
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view.contentMode = .scaleAspectFill
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view.layer.masksToBounds = true
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view.layer.cornerRadius = 8
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view.layer.cornerCurve = .continuous
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// accessibility
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view.accessibilityIgnoresInvertColors = true
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return view
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}()
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lazy var titleLabel: UILabel = {
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let label = UILabel()
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label.font = .systemFont(ofSize: 12, weight: .regular)
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label.textColor = Asset.Colors.Label.primary.color
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label.textAlignment = .center
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return label
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}()
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lazy var stackView: UIStackView = {
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let view = UIStackView()
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view.axis = .vertical
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view.spacing = 8
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view.distribution = .equalSpacing
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return view
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}()
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var selected: Bool = false {
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didSet { setNeedsLayout() }
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}
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// MARK: - Methods
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init(image: UIImage?, title: String) {
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super.init(frame: .zero)
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setupUI()
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imageView.image = image
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titleLabel.text = title
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}
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override var isAccessibilityElement: Bool {
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get { return true }
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set { }
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}
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override var accessibilityLabel: String? {
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get { titleLabel.text }
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set { }
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}
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required init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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}
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extension AppearanceView {
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private func setupUI() {
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stackView.addArrangedSubview(imageView)
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stackView.addArrangedSubview(titleLabel)
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addSubview(stackView)
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translatesAutoresizingMaskIntoConstraints = false
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stackView.translatesAutoresizingMaskIntoConstraints = false
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NSLayoutConstraint.activate([
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stackView.topAnchor.constraint(equalTo: self.topAnchor),
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stackView.leadingAnchor.constraint(equalTo: self.leadingAnchor),
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stackView.bottomAnchor.constraint(equalTo: self.bottomAnchor),
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stackView.trailingAnchor.constraint(equalTo: self.trailingAnchor),
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imageView.heightAnchor.constraint(equalTo: imageView.widthAnchor, multiplier: 120.0 / 90.0),
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])
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}
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private func configureForSelection() {
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if selected {
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imageView.layer.borderWidth = 3
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imageView.layer.borderColor = Asset.Colors.Label.primary.color.cgColor
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accessibilityTraits.insert(.selected)
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} else {
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imageView.layer.borderWidth = 1
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imageView.layer.borderColor = Asset.Colors.Label.primaryReverse.color.cgColor
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accessibilityTraits.remove(.selected)
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}
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}
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override func layoutSubviews() {
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super.layoutSubviews()
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configureForSelection()
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}
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override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
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super.traitCollectionDidChange(previousTraitCollection)
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setNeedsLayout()
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}
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}
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extension AppearanceView {
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override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
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super.touchesBegan(touches, with: event)
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self.alpha = 0.5
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}
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override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
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super.touchesEnded(touches, with: event)
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UIView.animate(withDuration: 0.33) {
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self.alpha = 1
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}
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}
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override func touchesCancelled(_ touches: Set<UITouch>, with event: UIEvent?) {
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super.touchesCancelled(touches, with: event)
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UIView.animate(withDuration: 0.33) {
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self.alpha = 1
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}
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}
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}
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