73 lines
2.5 KiB
Swift
73 lines
2.5 KiB
Swift
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//
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// AltViewController.swift
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// Mastodon
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//
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// Created by Jed Fox on 2022-11-26.
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//
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import SwiftUI
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class AltViewController: UIViewController {
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var alt: String?
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let label = UILabel()
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convenience init(alt: String?, sourceView: UIView?) {
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self.init(nibName: nil, bundle: nil)
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self.alt = alt
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self.modalPresentationStyle = .popover
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self.popoverPresentationController?.delegate = self
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self.popoverPresentationController?.permittedArrowDirections = .up
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self.popoverPresentationController?.sourceView = sourceView
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self.overrideUserInterfaceStyle = .dark
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}
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@objc override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?) {
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super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
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}
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@MainActor required dynamic init?(coder aDecoder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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override func viewDidLoad() {
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super.viewDidLoad()
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label.translatesAutoresizingMaskIntoConstraints = false
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label.numberOfLines = 0
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label.lineBreakMode = .byWordWrapping
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label.lineBreakStrategy = .standard
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label.font = .preferredFont(forTextStyle: .callout)
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label.text = alt ?? "ummmmmmm tbd but you shouldn’t see this"
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view.translatesAutoresizingMaskIntoConstraints = false
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view.addSubview(label)
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NSLayoutConstraint.activate(
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NSLayoutConstraint.constraints(withVisualFormat: "V:|-[label]-|", metrics: nil, views: ["label": label])
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)
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NSLayoutConstraint.activate(
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NSLayoutConstraint.constraints(withVisualFormat: "H:|-[label]-|", metrics: nil, views: ["label": label])
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)
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NSLayoutConstraint.activate([
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label.widthAnchor.constraint(lessThanOrEqualToConstant: 400),
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])
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}
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override func viewDidLayoutSubviews() {
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super.viewDidLayoutSubviews()
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UIView.performWithoutAnimation {
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preferredContentSize = CGSize(
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width: label.intrinsicContentSize.width + view.layoutMargins.left + view.layoutMargins.right,
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height: label.intrinsicContentSize.height + view.layoutMargins.top + view.layoutMargins.bottom
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)
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}
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}
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}
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// MARK: UIPopoverPresentationControllerDelegate
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extension AltViewController: UIPopoverPresentationControllerDelegate {
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func adaptivePresentationStyle(for controller: UIPresentationController, traitCollection: UITraitCollection) -> UIModalPresentationStyle {
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.none
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}
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}
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