mirror of
https://github.com/mastodon/mastodon-ios
synced 2025-04-11 22:58:02 +02:00
171 lines
5.5 KiB
Swift
171 lines
5.5 KiB
Swift
//
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// OpenGraphView.swift
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//
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//
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// Created by Kyle Bashour on 11/11/22.
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//
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import AlamofireImage
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import Combine
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import MastodonAsset
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import MastodonCore
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import CoreDataStack
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import UIKit
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public final class StatusCardControl: UIControl {
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private var disposeBag = Set<AnyCancellable>()
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private let containerStackView = UIStackView()
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private let labelStackView = UIStackView()
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private let highlightView = UIView()
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private let imageView = UIImageView()
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private let titleLabel = UILabel()
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private let linkLabel = UILabel()
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private lazy var compactImageConstraints = [
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imageView.heightAnchor.constraint(equalTo: heightAnchor),
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imageView.widthAnchor.constraint(equalToConstant: 85),
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heightAnchor.constraint(equalToConstant: 85).priority(.defaultLow - 1),
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heightAnchor.constraint(greaterThanOrEqualToConstant: 85)
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]
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private lazy var largeImageConstraints = [
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imageView.heightAnchor.constraint(
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equalTo: imageView.widthAnchor,
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multiplier: 21 / 40
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)
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// This priority is important or constraints break;
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// it still renders the card correctly.
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.priority(.defaultLow - 1),
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]
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public override var isHighlighted: Bool {
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didSet { highlightView.isHidden = !isHighlighted }
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}
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public override init(frame: CGRect) {
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super.init(frame: frame)
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apply(theme: ThemeService.shared.currentTheme.value)
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ThemeService.shared.currentTheme.sink { [weak self] theme in
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self?.apply(theme: theme)
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}.store(in: &disposeBag)
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clipsToBounds = true
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layer.cornerCurve = .continuous
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layer.cornerRadius = 10
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if #available(iOS 15, *) {
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maximumContentSizeCategory = .accessibilityLarge
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}
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highlightView.backgroundColor = UIColor.black.withAlphaComponent(0.1)
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highlightView.isHidden = true
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titleLabel.numberOfLines = 2
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titleLabel.textColor = Asset.Colors.Label.primary.color
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titleLabel.font = .preferredFont(forTextStyle: .body)
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linkLabel.numberOfLines = 1
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linkLabel.textColor = Asset.Colors.Label.secondary.color
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linkLabel.font = .preferredFont(forTextStyle: .subheadline)
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imageView.tintColor = Asset.Colors.Label.secondary.color
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imageView.contentMode = .scaleAspectFill
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imageView.clipsToBounds = true
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imageView.setContentHuggingPriority(.zero, for: .horizontal)
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imageView.setContentHuggingPriority(.zero, for: .vertical)
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imageView.setContentCompressionResistancePriority(.zero, for: .horizontal)
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imageView.setContentCompressionResistancePriority(.zero, for: .vertical)
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labelStackView.addArrangedSubview(titleLabel)
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labelStackView.addArrangedSubview(linkLabel)
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labelStackView.layoutMargins = .init(top: 10, left: 10, bottom: 10, right: 10)
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labelStackView.isLayoutMarginsRelativeArrangement = true
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labelStackView.axis = .vertical
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containerStackView.addArrangedSubview(imageView)
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containerStackView.addArrangedSubview(labelStackView)
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containerStackView.isUserInteractionEnabled = false
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containerStackView.distribution = .fill
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addSubview(containerStackView)
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addSubview(highlightView)
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containerStackView.translatesAutoresizingMaskIntoConstraints = false
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highlightView.translatesAutoresizingMaskIntoConstraints = false
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containerStackView.pinToParent()
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highlightView.pinToParent()
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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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public func configure(card: Card) {
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let isCompact = card.width == card.height
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if let host = card.url?.host {
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accessibilityLabel = "\(card.title) \(host)"
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} else {
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accessibilityLabel = card.title
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}
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titleLabel.text = card.title
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linkLabel.text = card.url?.host
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imageView.contentMode = .center
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imageView.sd_setImage(
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with: card.imageURL,
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placeholderImage: isCompact ? newsIcon : photoIcon
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) { [weak imageView] image, _, _, _ in
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if image != nil {
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imageView?.contentMode = .scaleAspectFill
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self.containerStackView.setNeedsLayout()
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self.containerStackView.layoutIfNeeded()
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}
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}
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NSLayoutConstraint.deactivate(compactImageConstraints + largeImageConstraints)
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if isCompact {
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containerStackView.alignment = .center
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containerStackView.axis = .horizontal
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NSLayoutConstraint.activate(compactImageConstraints)
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} else {
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containerStackView.alignment = .fill
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containerStackView.axis = .vertical
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NSLayoutConstraint.activate(largeImageConstraints)
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}
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}
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public override func didMoveToWindow() {
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super.didMoveToWindow()
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if let window = window {
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layer.borderWidth = 1 / window.screen.scale
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}
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}
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private var newsIcon: UIImage? {
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UIImage(systemName: "newspaper.fill")
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}
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private var photoIcon: UIImage? {
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let configuration = UIImage.SymbolConfiguration(pointSize: 32)
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return UIImage(systemName: "photo", withConfiguration: configuration)
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}
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private func apply(theme: Theme) {
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layer.borderColor = theme.separator.cgColor
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imageView.backgroundColor = theme.systemElevatedBackgroundColor
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}
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}
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private extension UILayoutPriority {
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static let zero = UILayoutPriority(rawValue: 0)
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}
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