139 lines
5.2 KiB
Swift
139 lines
5.2 KiB
Swift
// Copyright © 2020 Metabolist. All rights reserved.
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import UIKit
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import ViewModels
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final class StatusBodyView: UIView {
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let spoilerTextLabel = UILabel()
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let toggleShowContentButton = UIButton(type: .system)
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let contentTextView = TouchFallthroughTextView()
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let attachmentsView = AttachmentsView()
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let pollView = PollView()
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let cardView = CardView()
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var viewModel: StatusViewModel? {
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didSet {
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guard let viewModel = viewModel else { return }
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let isContextParent = viewModel.configuration.isContextParent
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let mutableContent = NSMutableAttributedString(attributedString: viewModel.content)
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let mutableSpoilerText = NSMutableAttributedString(string: viewModel.spoilerText)
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let contentFont = UIFont.preferredFont(forTextStyle: isContextParent ? .title3 : .callout)
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let contentRange = NSRange(location: 0, length: mutableContent.length)
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contentTextView.shouldFallthrough = !isContextParent
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mutableContent.removeAttribute(.font, range: contentRange)
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mutableContent.addAttributes(
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[.font: contentFont, .foregroundColor: UIColor.label],
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range: contentRange)
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mutableContent.insert(emoji: viewModel.contentEmoji, view: contentTextView)
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mutableContent.resizeAttachments(toLineHeight: contentFont.lineHeight)
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contentTextView.attributedText = mutableContent
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contentTextView.isHidden = contentTextView.text.isEmpty
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mutableSpoilerText.insert(emoji: viewModel.contentEmoji, view: spoilerTextLabel)
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mutableSpoilerText.resizeAttachments(toLineHeight: spoilerTextLabel.font.lineHeight)
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spoilerTextLabel.font = contentFont
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spoilerTextLabel.attributedText = mutableSpoilerText
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spoilerTextLabel.isHidden = spoilerTextLabel.text == ""
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toggleShowContentButton.setTitle(
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viewModel.shouldShowContent
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? NSLocalizedString("status.show-less", comment: "")
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: NSLocalizedString("status.show-more", comment: ""),
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for: .normal)
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toggleShowContentButton.isHidden = viewModel.spoilerText.isEmpty
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contentTextView.isHidden = !viewModel.shouldShowContent
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attachmentsView.isHidden = viewModel.attachmentViewModels.isEmpty
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attachmentsView.viewModel = viewModel
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pollView.isHidden = viewModel.pollOptions.isEmpty
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pollView.viewModel = viewModel
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cardView.viewModel = viewModel.cardViewModel
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cardView.isHidden = viewModel.cardViewModel == nil
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}
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}
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override init(frame: CGRect) {
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super.init(frame: frame)
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initialSetup()
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}
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@available(*, unavailable)
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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 StatusBodyView: UITextViewDelegate {
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func textView(
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_ textView: UITextView,
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shouldInteractWith URL: URL,
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in characterRange: NSRange,
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interaction: UITextItemInteraction) -> Bool {
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switch interaction {
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case .invokeDefaultAction:
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viewModel?.urlSelected(URL)
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return false
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case .preview: return false
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case .presentActions: return false
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@unknown default: return false
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}
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}
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}
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private extension StatusBodyView {
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func initialSetup() {
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let stackView = UIStackView()
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addSubview(stackView)
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stackView.translatesAutoresizingMaskIntoConstraints = false
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stackView.axis = .vertical
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stackView.spacing = .compactSpacing
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spoilerTextLabel.numberOfLines = 0
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spoilerTextLabel.adjustsFontForContentSizeCategory = true
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stackView.addArrangedSubview(spoilerTextLabel)
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toggleShowContentButton.titleLabel?.font = .preferredFont(forTextStyle: .headline)
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toggleShowContentButton.titleLabel?.adjustsFontForContentSizeCategory = true
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toggleShowContentButton.addAction(
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UIAction { [weak self] _ in self?.viewModel?.toggleShowContent() },
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for: .touchUpInside)
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stackView.addArrangedSubview(toggleShowContentButton)
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contentTextView.adjustsFontForContentSizeCategory = true
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contentTextView.isScrollEnabled = false
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contentTextView.backgroundColor = .clear
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contentTextView.delegate = self
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stackView.addArrangedSubview(contentTextView)
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stackView.addArrangedSubview(attachmentsView)
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stackView.addArrangedSubview(pollView)
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cardView.button.addAction(
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UIAction { [weak self] _ in
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guard
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let viewModel = self?.viewModel,
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let url = viewModel.cardViewModel?.url
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else { return }
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viewModel.urlSelected(url)
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},
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for: .touchUpInside)
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stackView.addArrangedSubview(cardView)
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NSLayoutConstraint.activate([
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stackView.leadingAnchor.constraint(equalTo: leadingAnchor),
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stackView.topAnchor.constraint(equalTo: topAnchor),
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stackView.trailingAnchor.constraint(equalTo: trailingAnchor),
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stackView.bottomAnchor.constraint(equalTo: bottomAnchor)
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])
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}
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}
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