mastodon-ios/Mastodon/Scene/Share/View/Content/StatusView.swift

375 lines
16 KiB
Swift

//
// StatusView.swift
// Mastodon
//
// Created by sxiaojian on 2021/1/28.
//
import os.log
import UIKit
import AVKit
import ActiveLabel
import AlamofireImage
protocol StatusViewDelegate: class {
func statusView(_ statusView: StatusView, contentWarningActionButtonPressed button: UIButton)
}
final class StatusView: UIView {
static let avatarImageSize = CGSize(width: 42, height: 42)
static let avatarImageCornerRadius: CGFloat = 4
static let contentWarningBlurRadius: CGFloat = 12
weak var delegate: StatusViewDelegate?
var isStatusTextSensitive = false
let headerContainerStackView = UIStackView()
let headerIconLabel: UILabel = {
let label = UILabel()
let attributedString = NSMutableAttributedString()
let imageTextAttachment = NSTextAttachment()
let font = UIFont.systemFont(ofSize: 13, weight: .medium)
let configuration = UIImage.SymbolConfiguration(font: font)
imageTextAttachment.image = UIImage(systemName: "arrow.2.squarepath", withConfiguration: configuration)?.withTintColor(Asset.Colors.Label.secondary.color)
let imageAttribute = NSAttributedString(attachment: imageTextAttachment)
attributedString.append(imageAttribute)
label.attributedText = attributedString
return label
}()
let headerInfoLabel: UILabel = {
let label = UILabel()
label.font = UIFontMetrics(forTextStyle: .footnote).scaledFont(for: .systemFont(ofSize: 13, weight: .medium))
label.textColor = Asset.Colors.Label.secondary.color
label.text = "Bob boosted"
return label
}()
let avatarView = UIView()
let avatarButton: UIButton = {
let button = HighlightDimmableButton(type: .custom)
let placeholderImage = UIImage.placeholder(size: avatarImageSize, color: .systemFill)
.af.imageRounded(withCornerRadius: StatusView.avatarImageCornerRadius, divideRadiusByImageScale: true)
button.setImage(placeholderImage, for: .normal)
return button
}()
let nameLabel: UILabel = {
let label = UILabel()
label.font = .systemFont(ofSize: 17, weight: .semibold)
label.textColor = Asset.Colors.Label.primary.color
label.text = "Alice"
return label
}()
let usernameLabel: UILabel = {
let label = UILabel()
label.font = .systemFont(ofSize: 15, weight: .regular)
label.textColor = Asset.Colors.Label.secondary.color
label.text = "@alice"
return label
}()
let dateLabel: UILabel = {
let label = UILabel()
label.font = .systemFont(ofSize: 13, weight: .regular)
label.textColor = Asset.Colors.Label.secondary.color
label.text = "1d"
return label
}()
let statusContainerStackView = UIStackView()
let statusTextContainerView = UIView()
let statusContentWarningContainerStackView = UIStackView()
var statusContentWarningContainerStackViewBottomLayoutConstraint: NSLayoutConstraint!
let contentWarningTitle: UILabel = {
let label = UILabel()
label.font = UIFontMetrics(forTextStyle: .headline).scaledFont(for: .systemFont(ofSize: 15, weight: .regular))
label.textColor = Asset.Colors.Label.primary.color
label.text = L10n.Common.Controls.Status.contentWarning
return label
}()
let contentWarningActionButton: UIButton = {
let button = UIButton()
button.titleLabel?.font = UIFontMetrics(forTextStyle: .headline).scaledFont(for: .systemFont(ofSize: 15, weight: .medium))
button.setTitleColor(Asset.Colors.Label.highlight.color, for: .normal)
button.setTitle(L10n.Common.Controls.Status.showPost, for: .normal)
return button
}()
let statusMosaicImageView = MosaicImageViewContainer()
// do not use visual effect view due to we blur text only without background
let contentWarningBlurContentImageView: UIImageView = {
let imageView = UIImageView()
imageView.backgroundColor = Asset.Colors.Background.secondaryGroupedSystemBackground.color
imageView.layer.masksToBounds = false
return imageView
}()
let actionToolbarContainer: ActionToolbarContainer = {
let actionToolbarContainer = ActionToolbarContainer()
actionToolbarContainer.configure(for: .inline)
return actionToolbarContainer
}()
let activeTextLabel = ActiveLabel(style: .default)
override init(frame: CGRect) {
super.init(frame: frame)
_init()
}
required init?(coder: NSCoder) {
super.init(coder: coder)
_init()
}
override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
super.traitCollectionDidChange(previousTraitCollection)
// update blur image when interface style changed
if previousTraitCollection?.userInterfaceStyle != traitCollection.userInterfaceStyle {
drawContentWarningImageView()
}
}
}
extension StatusView {
func _init() {
// container: [retoot | author | status | action toolbar]
let containerStackView = UIStackView()
containerStackView.axis = .vertical
containerStackView.spacing = 10
containerStackView.translatesAutoresizingMaskIntoConstraints = false
addSubview(containerStackView)
NSLayoutConstraint.activate([
containerStackView.topAnchor.constraint(equalTo: topAnchor),
containerStackView.leadingAnchor.constraint(equalTo: leadingAnchor),
trailingAnchor.constraint(equalTo: containerStackView.trailingAnchor),
bottomAnchor.constraint(equalTo: containerStackView.bottomAnchor),
])
// header container: [icon | info]
containerStackView.addArrangedSubview(headerContainerStackView)
headerContainerStackView.spacing = 4
headerContainerStackView.addArrangedSubview(headerIconLabel)
headerContainerStackView.addArrangedSubview(headerInfoLabel)
headerIconLabel.setContentHuggingPriority(.defaultHigh, for: .horizontal)
// author container: [avatar | author meta container]
let authorContainerStackView = UIStackView()
containerStackView.addArrangedSubview(authorContainerStackView)
authorContainerStackView.axis = .horizontal
authorContainerStackView.spacing = 5
// avatar
avatarView.translatesAutoresizingMaskIntoConstraints = false
authorContainerStackView.addArrangedSubview(avatarView)
NSLayoutConstraint.activate([
avatarView.widthAnchor.constraint(equalToConstant: StatusView.avatarImageSize.width).priority(.required - 1),
avatarView.heightAnchor.constraint(equalToConstant: StatusView.avatarImageSize.height).priority(.required - 1),
])
avatarButton.translatesAutoresizingMaskIntoConstraints = false
avatarView.addSubview(avatarButton)
NSLayoutConstraint.activate([
avatarButton.topAnchor.constraint(equalTo: avatarView.topAnchor),
avatarButton.leadingAnchor.constraint(equalTo: avatarView.leadingAnchor),
avatarButton.trailingAnchor.constraint(equalTo: avatarView.trailingAnchor),
avatarButton.bottomAnchor.constraint(equalTo: avatarView.bottomAnchor),
])
// author meta container: [title container | subtitle container]
let authorMetaContainerStackView = UIStackView()
authorContainerStackView.addArrangedSubview(authorMetaContainerStackView)
authorMetaContainerStackView.axis = .vertical
authorMetaContainerStackView.spacing = 4
// title container: [display name | "·" | date]
let titleContainerStackView = UIStackView()
authorMetaContainerStackView.addArrangedSubview(titleContainerStackView)
titleContainerStackView.axis = .horizontal
titleContainerStackView.spacing = 4
nameLabel.translatesAutoresizingMaskIntoConstraints = false
titleContainerStackView.addArrangedSubview(nameLabel)
NSLayoutConstraint.activate([
nameLabel.heightAnchor.constraint(equalToConstant: 22).priority(.defaultHigh),
])
titleContainerStackView.alignment = .firstBaseline
let dotLabel: UILabel = {
let label = UILabel()
label.textColor = Asset.Colors.Label.secondary.color
label.font = .systemFont(ofSize: 17)
label.text = "·"
return label
}()
titleContainerStackView.addArrangedSubview(dotLabel)
titleContainerStackView.addArrangedSubview(dateLabel)
nameLabel.setContentHuggingPriority(.defaultHigh + 1, for: .horizontal)
dotLabel.setContentHuggingPriority(.defaultHigh + 2, for: .horizontal)
dotLabel.setContentCompressionResistancePriority(.required - 2, for: .horizontal)
dateLabel.setContentHuggingPriority(.defaultHigh, for: .horizontal)
dateLabel.setContentCompressionResistancePriority(.required - 1, for: .horizontal)
// subtitle container: [username]
let subtitleContainerStackView = UIStackView()
authorMetaContainerStackView.addArrangedSubview(subtitleContainerStackView)
subtitleContainerStackView.axis = .horizontal
subtitleContainerStackView.addArrangedSubview(usernameLabel)
// status container: [status | image / video | audio]
containerStackView.addArrangedSubview(statusContainerStackView)
statusContainerStackView.axis = .vertical
statusContainerStackView.spacing = 10
statusContainerStackView.addArrangedSubview(statusTextContainerView)
statusTextContainerView.setContentCompressionResistancePriority(.required - 2, for: .vertical)
activeTextLabel.translatesAutoresizingMaskIntoConstraints = false
statusTextContainerView.addSubview(activeTextLabel)
NSLayoutConstraint.activate([
activeTextLabel.topAnchor.constraint(equalTo: statusTextContainerView.topAnchor),
activeTextLabel.leadingAnchor.constraint(equalTo: statusTextContainerView.leadingAnchor),
activeTextLabel.trailingAnchor.constraint(equalTo: statusTextContainerView.trailingAnchor),
statusTextContainerView.bottomAnchor.constraint(greaterThanOrEqualTo: activeTextLabel.bottomAnchor),
])
contentWarningBlurContentImageView.translatesAutoresizingMaskIntoConstraints = false
statusTextContainerView.addSubview(contentWarningBlurContentImageView)
NSLayoutConstraint.activate([
activeTextLabel.topAnchor.constraint(equalTo: contentWarningBlurContentImageView.topAnchor, constant: StatusView.contentWarningBlurRadius),
activeTextLabel.leadingAnchor.constraint(equalTo: contentWarningBlurContentImageView.leadingAnchor, constant: StatusView.contentWarningBlurRadius),
])
statusContentWarningContainerStackView.translatesAutoresizingMaskIntoConstraints = false
statusContentWarningContainerStackView.axis = .vertical
statusContentWarningContainerStackView.distribution = .fill
statusContentWarningContainerStackView.alignment = .center
statusTextContainerView.addSubview(statusContentWarningContainerStackView)
statusContentWarningContainerStackViewBottomLayoutConstraint = statusTextContainerView.bottomAnchor.constraint(greaterThanOrEqualTo: statusContentWarningContainerStackView.bottomAnchor)
NSLayoutConstraint.activate([
statusContentWarningContainerStackView.topAnchor.constraint(equalTo: statusTextContainerView.topAnchor),
statusContentWarningContainerStackView.leadingAnchor.constraint(equalTo: statusTextContainerView.leadingAnchor),
statusContentWarningContainerStackView.trailingAnchor.constraint(equalTo: statusTextContainerView.trailingAnchor),
statusContentWarningContainerStackViewBottomLayoutConstraint,
])
statusContentWarningContainerStackView.addArrangedSubview(contentWarningTitle)
statusContentWarningContainerStackView.addArrangedSubview(contentWarningActionButton)
statusContainerStackView.addArrangedSubview(statusMosaicImageView)
// action toolbar container
containerStackView.addArrangedSubview(actionToolbarContainer)
actionToolbarContainer.setContentCompressionResistancePriority(.defaultLow, for: .vertical)
headerContainerStackView.isHidden = true
statusMosaicImageView.isHidden = true
contentWarningBlurContentImageView.isHidden = true
statusContentWarningContainerStackView.isHidden = true
statusContentWarningContainerStackViewBottomLayoutConstraint.isActive = false
contentWarningActionButton.addTarget(self, action: #selector(StatusView.contentWarningActionButtonPressed(_:)), for: .touchUpInside)
}
}
extension StatusView {
func cleanUpContentWarning() {
contentWarningBlurContentImageView.image = nil
}
func drawContentWarningImageView() {
guard activeTextLabel.frame != .zero,
isStatusTextSensitive,
let text = activeTextLabel.text, !text.isEmpty else {
cleanUpContentWarning()
return
}
let image = UIGraphicsImageRenderer(size: activeTextLabel.frame.size).image { context in
activeTextLabel.draw(activeTextLabel.bounds)
}
.blur(radius: StatusView.contentWarningBlurRadius)
contentWarningBlurContentImageView.contentScaleFactor = traitCollection.displayScale
contentWarningBlurContentImageView.image = image
}
func updateContentWarningDisplay(isHidden: Bool) {
contentWarningBlurContentImageView.isHidden = isHidden
statusContentWarningContainerStackView.isHidden = isHidden
statusContentWarningContainerStackViewBottomLayoutConstraint.isActive = !isHidden
}
}
extension StatusView {
@objc private func contentWarningActionButtonPressed(_ sender: UIButton) {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
delegate?.statusView(self, contentWarningActionButtonPressed: sender)
}
}
extension StatusView: AvatarConfigurableView {
static var configurableAvatarImageSize: CGSize { return Self.avatarImageSize }
static var configurableAvatarImageCornerRadius: CGFloat { return 4 }
var configurableAvatarImageView: UIImageView? { return nil }
var configurableAvatarButton: UIButton? { return avatarButton }
var configurableVerifiedBadgeImageView: UIImageView? { nil }
}
#if canImport(SwiftUI) && DEBUG
import SwiftUI
struct StatusView_Previews: PreviewProvider {
static let avatarFlora = UIImage(named: "tiraya-adam")
static var previews: some View {
Group {
UIViewPreview(width: 375) {
let statusView = StatusView()
statusView.configure(
with: AvatarConfigurableViewConfiguration(
avatarImageURL: nil,
placeholderImage: avatarFlora
)
)
return statusView
}
.previewLayout(.fixed(width: 375, height: 200))
UIViewPreview(width: 375) {
let statusView = StatusView(frame: CGRect(x: 0, y: 0, width: 375, height: 500))
statusView.configure(
with: AvatarConfigurableViewConfiguration(
avatarImageURL: nil,
placeholderImage: avatarFlora
)
)
statusView.headerContainerStackView.isHidden = false
statusView.isStatusTextSensitive = true
statusView.setNeedsLayout()
statusView.layoutIfNeeded()
statusView.drawContentWarningImageView()
statusView.updateContentWarningDisplay(isHidden: false)
let images = MosaicImageView_Previews.images
let imageViews = statusView.statusMosaicImageView.setupImageViews(count: 4, maxHeight: 162)
for (i, imageView) in imageViews.enumerated() {
imageView.image = images[i]
}
statusView.statusMosaicImageView.isHidden = false
return statusView
}
.previewLayout(.fixed(width: 375, height: 380))
}
}
}
#endif