136 lines
5.2 KiB
Swift
136 lines
5.2 KiB
Swift
//
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// AttachmentContainerView+EmptyStateView.swift
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// Mastodon
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//
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// Created by MainasuK Cirno on 2021-3-18.
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//
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import UIKit
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import MastodonUI
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extension AttachmentContainerView {
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final class EmptyStateView: UIView {
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static let photoFillSplitImage = Asset.Connectivity.photoFillSplit.image.withRenderingMode(.alwaysTemplate)
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static let videoSplashImage: UIImage = {
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let image = UIImage(systemName: "video.slash")!.withConfiguration(UIImage.SymbolConfiguration(pointSize: 64))
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return image
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}()
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let imageView: UIImageView = {
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let imageView = UIImageView()
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imageView.tintColor = Asset.Colors.Label.secondary.color
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imageView.image = AttachmentContainerView.EmptyStateView.photoFillSplitImage
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return imageView
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}()
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let label: UILabel = {
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let label = UILabel()
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label.font = .preferredFont(forTextStyle: .body)
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label.textColor = Asset.Colors.Label.secondary.color
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label.textAlignment = .center
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label.text = L10n.Scene.Compose.Attachment.attachmentBroken(L10n.Scene.Compose.Attachment.photo)
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label.numberOfLines = 2
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label.adjustsFontSizeToFitWidth = true
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label.minimumScaleFactor = 0.3
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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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}
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extension AttachmentContainerView.EmptyStateView {
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private func _init() {
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layer.masksToBounds = true
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layer.cornerRadius = AttachmentContainerView.containerViewCornerRadius
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layer.cornerCurve = .continuous
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backgroundColor = ThemeService.shared.currentTheme.value.systemGroupedBackgroundColor
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let stackView = UIStackView()
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stackView.axis = .vertical
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stackView.alignment = .center
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stackView.translatesAutoresizingMaskIntoConstraints = false
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addSubview(stackView)
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NSLayoutConstraint.activate([
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stackView.topAnchor.constraint(equalTo: topAnchor),
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stackView.leadingAnchor.constraint(equalTo: leadingAnchor),
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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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let topPaddingView = UIView()
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let middlePaddingView = UIView()
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let bottomPaddingView = UIView()
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topPaddingView.translatesAutoresizingMaskIntoConstraints = false
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stackView.addArrangedSubview(topPaddingView)
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imageView.translatesAutoresizingMaskIntoConstraints = false
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stackView.addArrangedSubview(imageView)
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NSLayoutConstraint.activate([
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imageView.widthAnchor.constraint(equalToConstant: 92).priority(.defaultHigh),
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imageView.heightAnchor.constraint(equalToConstant: 76).priority(.defaultHigh),
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])
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imageView.setContentHuggingPriority(.required - 1, for: .vertical)
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middlePaddingView.translatesAutoresizingMaskIntoConstraints = false
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stackView.addArrangedSubview(middlePaddingView)
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stackView.addArrangedSubview(label)
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bottomPaddingView.translatesAutoresizingMaskIntoConstraints = false
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stackView.addArrangedSubview(bottomPaddingView)
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NSLayoutConstraint.activate([
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topPaddingView.heightAnchor.constraint(equalTo: middlePaddingView.heightAnchor, multiplier: 1.5),
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bottomPaddingView.heightAnchor.constraint(equalTo: middlePaddingView.heightAnchor, multiplier: 1.5),
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])
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}
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}
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#if canImport(SwiftUI) && DEBUG
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import SwiftUI
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struct AttachmentContainerView_EmptyStateView_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 emptyStateView = AttachmentContainerView.EmptyStateView()
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NSLayoutConstraint.activate([
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emptyStateView.heightAnchor.constraint(equalToConstant: 205)
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])
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return emptyStateView
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}
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.previewLayout(.fixed(width: 375, height: 205))
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UIViewPreview(width: 375) {
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let emptyStateView = AttachmentContainerView.EmptyStateView()
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NSLayoutConstraint.activate([
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emptyStateView.heightAnchor.constraint(equalToConstant: 205)
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])
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return emptyStateView
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}
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.preferredColorScheme(.dark)
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.previewLayout(.fixed(width: 375, height: 205))
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UIViewPreview(width: 375) {
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let emptyStateView = AttachmentContainerView.EmptyStateView()
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emptyStateView.imageView.image = AttachmentContainerView.EmptyStateView.videoSplashImage
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emptyStateView.label.text = L10n.Scene.Compose.Attachment.attachmentBroken(L10n.Scene.Compose.Attachment.video)
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NSLayoutConstraint.activate([
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emptyStateView.heightAnchor.constraint(equalToConstant: 205)
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])
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return emptyStateView
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}
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.previewLayout(.fixed(width: 375, height: 205))
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}
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}
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}
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#endif
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