metatext-app-ios-iphone-ipad/View Controllers/EditAttachmentViewControlle...

127 lines
4.9 KiB
Swift

// Copyright © 2021 Metabolist. All rights reserved.
import Combine
import UIKit
import ViewModels
final class EditAttachmentViewController: UIViewController {
private let viewModel: AttachmentViewModel
private let parentViewModel: CompositionViewModel
private var cancellables = Set<AnyCancellable>()
init(viewModel: AttachmentViewModel, parentViewModel: CompositionViewModel) {
self.viewModel = viewModel
self.parentViewModel = parentViewModel
super.init(nibName: nil, bundle: nil)
}
@available(*, unavailable)
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
// swiftlint:disable:next function_body_length
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .systemBackground
let editThumbnailView = EditThumbnailView(viewModel: viewModel)
view.addSubview(editThumbnailView)
editThumbnailView.translatesAutoresizingMaskIntoConstraints = false
let stackView = UIStackView()
view.addSubview(stackView)
stackView.translatesAutoresizingMaskIntoConstraints = false
stackView.axis = .vertical
stackView.spacing = .defaultSpacing
let describeLabel = UILabel()
stackView.addArrangedSubview(describeLabel)
describeLabel.adjustsFontForContentSizeCategory = true
describeLabel.font = .preferredFont(forTextStyle: .headline)
describeLabel.numberOfLines = 0
describeLabel.textAlignment = .center
switch viewModel.attachment.type {
case .audio:
describeLabel.text = NSLocalizedString("attachment.edit.description.audio", comment: "")
case .video:
describeLabel.text = NSLocalizedString("attachment.edit.description.video", comment: "")
default:
describeLabel.text = NSLocalizedString("attachment.edit.description", comment: "")
}
let textView = UITextView()
stackView.addArrangedSubview(textView)
textView.adjustsFontForContentSizeCategory = true
textView.font = .preferredFont(forTextStyle: .body)
textView.layer.borderWidth = .hairline
textView.layer.borderColor = UIColor.separator.cgColor
textView.layer.cornerRadius = .defaultCornerRadius
textView.delegate = self
textView.text = viewModel.editingDescription
let remainingCharactersLabel = UILabel()
stackView.addArrangedSubview(remainingCharactersLabel)
remainingCharactersLabel.adjustsFontForContentSizeCategory = true
remainingCharactersLabel.font = .preferredFont(forTextStyle: .subheadline)
NSLayoutConstraint.activate([
stackView.leadingAnchor.constraint(equalTo: view.layoutMarginsGuide.leadingAnchor),
stackView.topAnchor.constraint(equalTo: view.layoutMarginsGuide.topAnchor, constant: .defaultSpacing),
editThumbnailView.leadingAnchor.constraint(equalTo: stackView.trailingAnchor, constant: .defaultSpacing),
stackView.bottomAnchor.constraint(
equalTo: view.layoutMarginsGuide.bottomAnchor,
constant: -.defaultSpacing),
editThumbnailView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor),
editThumbnailView.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor),
editThumbnailView.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor),
editThumbnailView.widthAnchor.constraint(equalTo: stackView.widthAnchor, multiplier: 3 / 2)
])
viewModel.$descriptionRemainingCharacters
.sink {
remainingCharactersLabel.text = String($0)
remainingCharactersLabel.textColor = $0 < 0 ? .systemRed : .label
}
.store(in: &cancellables)
textView.becomeFirstResponder()
}
override func didMove(toParent parent: UIViewController?) {
super.didMove(toParent: parent)
let cancelButton = UIBarButtonItem(
systemItem: .cancel,
primaryAction: UIAction { [weak self] _ in
self?.presentingViewController?.dismiss(animated: true)
})
let doneButton = UIBarButtonItem(
systemItem: .done,
primaryAction: UIAction { [weak self] _ in
guard let self = self else { return }
self.parentViewModel.update(attachmentViewModel: self.viewModel)
self.presentingViewController?.dismiss(animated: true)
})
parent?.navigationItem.leftBarButtonItem = cancelButton
parent?.navigationItem.rightBarButtonItem = doneButton
parent?.navigationItem.title = NSLocalizedString("attachment.edit.title", comment: "")
}
}
extension EditAttachmentViewController: UITextViewDelegate {
func textViewDidChange(_ textView: UITextView) {
viewModel.editingDescription = textView.text
}
}