forked from zelo72/mastodon-ios
129 lines
4.5 KiB
Swift
129 lines
4.5 KiB
Swift
//
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// TimelineHeaderView.swift
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// Mastodon
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//
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// Created by MainasuK Cirno on 2021-4-6.
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//
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final class TimelineHeaderView: UIView {
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let iconImageView: UIImageView = {
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let imageView = UIImageView()
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imageView.tintColor = Asset.Colors.Label.secondary.color
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return imageView
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}()
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let messageLabel: UILabel = {
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let label = UILabel()
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label.font = .systemFont(ofSize: 17)
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label.textAlignment = .center
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label.textColor = Asset.Colors.Label.secondary.color
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label.text = "info"
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label.numberOfLines = 0
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return label
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}()
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override init(frame: CGRect) {
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super.init(frame: frame)
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_init()
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}
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required init?(coder: NSCoder) {
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super.init(coder: coder)
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_init()
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}
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}
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extension TimelineHeaderView {
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private func _init() {
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backgroundColor = .clear
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let topPaddingView = UIView()
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topPaddingView.translatesAutoresizingMaskIntoConstraints = false
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addSubview(topPaddingView)
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NSLayoutConstraint.activate([
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topPaddingView.topAnchor.constraint(equalTo: topAnchor),
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topPaddingView.leadingAnchor.constraint(equalTo: leadingAnchor),
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topPaddingView.trailingAnchor.constraint(equalTo: trailingAnchor),
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])
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let containerStackView = UIStackView()
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containerStackView.axis = .vertical
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containerStackView.alignment = .center
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containerStackView.distribution = .fill
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containerStackView.spacing = 16
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containerStackView.translatesAutoresizingMaskIntoConstraints = false
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addSubview(containerStackView)
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NSLayoutConstraint.activate([
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containerStackView.topAnchor.constraint(equalTo: topPaddingView.bottomAnchor),
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containerStackView.leadingAnchor.constraint(equalTo: leadingAnchor),
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containerStackView.trailingAnchor.constraint(equalTo: trailingAnchor),
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])
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containerStackView.addArrangedSubview(iconImageView)
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containerStackView.addArrangedSubview(messageLabel)
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let bottomPaddingView = UIView()
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bottomPaddingView.translatesAutoresizingMaskIntoConstraints = false
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addSubview(bottomPaddingView)
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NSLayoutConstraint.activate([
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bottomPaddingView.topAnchor.constraint(equalTo: containerStackView.bottomAnchor),
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bottomPaddingView.leadingAnchor.constraint(equalTo: leadingAnchor),
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bottomPaddingView.trailingAnchor.constraint(equalTo: trailingAnchor),
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bottomPaddingView.bottomAnchor.constraint(equalTo: bottomAnchor),
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])
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NSLayoutConstraint.activate([
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topPaddingView.heightAnchor.constraint(equalToConstant: 100).priority(.defaultHigh),
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bottomPaddingView.heightAnchor.constraint(equalTo: topPaddingView.heightAnchor, multiplier: 1.0),
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])
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}
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}
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extension Item.EmptyStateHeaderAttribute.Reason {
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var iconImage: UIImage? {
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switch self {
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case .noStatusFound, .blocking, .blocked:
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return UIImage(systemName: "nosign", withConfiguration: UIImage.SymbolConfiguration(pointSize: 64, weight: .bold))!
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case .suspended:
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return UIImage(systemName: "person.crop.circle.badge.xmark", withConfiguration: UIImage.SymbolConfiguration(pointSize: 64, weight: .bold))!
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}
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}
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var message: String {
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switch self {
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case .noStatusFound:
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return L10n.Common.Controls.Timeline.Header.noStatusFound
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case .blocking:
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return L10n.Common.Controls.Timeline.Header.blockingWarning
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case .blocked:
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return L10n.Common.Controls.Timeline.Header.blockedWarning
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case .suspended(let name):
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if let name = name {
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return L10n.Common.Controls.Timeline.Header.userSuspendedWarning(name)
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} else {
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return L10n.Common.Controls.Timeline.Header.suspendedWarning
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}
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}
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}
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}
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#if DEBUG && canImport(SwiftUI)
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import SwiftUI
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struct TimelineHeaderView_Previews: PreviewProvider {
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static var previews: some View {
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Group {
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UIViewPreview(width: 375) {
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let headerView = TimelineHeaderView()
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headerView.iconImageView.image = Item.EmptyStateHeaderAttribute.Reason.blocking.iconImage
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headerView.messageLabel.text = Item.EmptyStateHeaderAttribute.Reason.blocking.message
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return headerView
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}
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.previewLayout(.fixed(width: 375, height: 400))
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}
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}
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}
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#endif
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