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mastodon-app-ufficiale-ipho.../MastodonSDK/Sources/MastodonUI/View/Content/UserView.swift

292 lines
11 KiB
Swift
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//
// UserView.swift
//
//
// Created by MainasuK on 2022-1-19.
//
import UIKit
import Combine
import MetaTextKit
import MastodonAsset
import MastodonLocalization
import os
import CoreDataStack
public protocol UserViewDelegate: AnyObject {
func userView(_ view: UserView, didTapButtonWith state: UserView.ButtonState, for user: MastodonUser)
}
public final class UserView: UIView {
public enum ButtonState {
case none, follow, unfollow, blocked
}
private var currentButtonState: ButtonState = .none
public weak var delegate: UserViewDelegate?
public var disposeBag = Set<AnyCancellable>()
public private(set) lazy var viewModel: ViewModel = {
let viewModel = ViewModel()
viewModel.bind(userView: self)
return viewModel
}()
public let containerStackView: UIStackView = {
let stackView = UIStackView()
stackView.axis = .horizontal
stackView.alignment = .center
stackView.spacing = 12
stackView.layoutMargins = UIEdgeInsets(top: 12, left: 0, bottom: 12, right: 0)
stackView.isLayoutMarginsRelativeArrangement = true
return stackView
}()
// avatar
public let avatarButton = AvatarButton()
// author name
public let authorNameLabel = MetaLabel(style: .statusName)
// author username
public let authorUsernameLabel = MetaLabel(style: .statusUsername)
public let authorFollowersLabel: UILabel = {
let label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
label.textColor = .secondaryLabel
return label
}()
public let authorVerifiedLabel: MetaLabel = {
let label = MetaLabel(style: .profileFieldValue)
label.translatesAutoresizingMaskIntoConstraints = false
label.textAttributes = [
.font: UIFontMetrics(forTextStyle: .body).scaledFont(for: .systemFont(ofSize: 15, weight: .regular)),
.foregroundColor: UIColor.secondaryLabel
]
label.linkAttributes = [
.font: UIFontMetrics(forTextStyle: .body).scaledFont(for: .systemFont(ofSize: 15, weight: .semibold)),
.foregroundColor: Asset.Colors.brand.color
]
label.isUserInteractionEnabled = false
return label
}()
public let authorVerifiedImageView: UIImageView = {
let imageView = UIImageView()
imageView.setContentHuggingPriority(.required, for: .horizontal)
imageView.setContentCompressionResistancePriority(.defaultHigh, for: .vertical)
imageView.setContentHuggingPriority(.required, for: .vertical)
imageView.contentMode = .scaleAspectFit
return imageView
}()
private let verifiedStackView: UIStackView = {
let stackView = UIStackView()
stackView.axis = .horizontal
stackView.alignment = .center
return stackView
}()
private let verifiedStackCenterSpacerView: UILabel = {
let label = UILabel()
label.text = " · "
label.textColor = .secondaryLabel
return label
}()
private let followButton: FollowButton = {
let button = FollowButton()
button.cornerRadius = 10
button.isHidden = true
button.translatesAutoresizingMaskIntoConstraints = false
button.setContentCompressionResistancePriority(.required, for: .horizontal)
button.setContentHuggingPriority(.required, for: .horizontal)
NSLayoutConstraint.activate([
button.widthAnchor.constraint(equalToConstant: 96),
button.heightAnchor.constraint(equalToConstant: 36)
])
return button
}()
public func prepareForReuse() {
disposeBag.removeAll()
// viewModel.objects.removeAll()
viewModel.authorAvatarImageURL = nil
avatarButton.avatarImageView.cancelTask()
setButtonState(.none)
}
public override init(frame: CGRect) {
super.init(frame: frame)
_init()
}
public required init?(coder: NSCoder) {
super.init(coder: coder)
_init()
}
}
extension UserView {
private func _init() {
// container
containerStackView.translatesAutoresizingMaskIntoConstraints = false
addSubview(containerStackView)
containerStackView.pinToParent()
avatarButton.translatesAutoresizingMaskIntoConstraints = false
containerStackView.addArrangedSubview(avatarButton)
NSLayoutConstraint.activate([
avatarButton.widthAnchor.constraint(equalToConstant: 28).priority(.required - 1),
avatarButton.heightAnchor.constraint(equalToConstant: 28).priority(.required - 1),
])
avatarButton.setContentHuggingPriority(.defaultLow, for: .vertical)
avatarButton.setContentHuggingPriority(.defaultLow, for: .horizontal)
// label container
let labelStackView = UIStackView()
labelStackView.axis = .vertical
containerStackView.addArrangedSubview(labelStackView)
// follow button
containerStackView.addArrangedSubview(followButton)
let nameStackView = UIStackView()
nameStackView.axis = .horizontal
let nameSpacer = UIView()
nameSpacer.setContentCompressionResistancePriority(.defaultLow, for: .horizontal)
nameStackView.addArrangedSubview(authorNameLabel)
nameStackView.addArrangedSubview(authorUsernameLabel)
nameStackView.addArrangedSubview(nameSpacer)
authorNameLabel.setContentCompressionResistancePriority(.required - 1, for: .vertical)
authorNameLabel.setContentCompressionResistancePriority(.defaultHigh, for: .horizontal)
authorUsernameLabel.setContentCompressionResistancePriority(.required - 1, for: .vertical)
authorUsernameLabel.setContentCompressionResistancePriority(.defaultHigh - 1, for: .horizontal)
labelStackView.addArrangedSubview(nameStackView)
let verifiedSpacerView = UIView()
let verifiedStackTrailingSpacerView = UIView()
verifiedStackTrailingSpacerView.setContentCompressionResistancePriority(.defaultHigh, for: .horizontal)
let verifiedContainerStack = UIStackView()
verifiedContainerStack.axis = .horizontal
verifiedContainerStack.alignment = .center
NSLayoutConstraint.activate([
authorVerifiedImageView.widthAnchor.constraint(equalToConstant: 15),
verifiedSpacerView.widthAnchor.constraint(equalToConstant: 2)
])
verifiedContainerStack.addArrangedSubview(authorVerifiedImageView)
verifiedContainerStack.addArrangedSubview(verifiedSpacerView)
verifiedContainerStack.addArrangedSubview(authorVerifiedLabel)
verifiedStackView.addArrangedSubview(authorFollowersLabel)
verifiedStackView.addArrangedSubview(verifiedStackCenterSpacerView)
verifiedStackView.addArrangedSubview(verifiedContainerStack)
verifiedStackView.addArrangedSubview(verifiedStackTrailingSpacerView)
labelStackView.addArrangedSubview(verifiedStackView)
avatarButton.isUserInteractionEnabled = false
authorNameLabel.isUserInteractionEnabled = false
authorUsernameLabel.isUserInteractionEnabled = false
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isAccessibilityElement = true
}
}
private final class FollowButton: RoundedEdgesButton {
init() {
super.init(frame: .zero)
configureAppearance()
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
private func configureAppearance() {
setTitleColor(Asset.Colors.Label.primaryReverse.color, for: .normal)
setTitleColor(Asset.Colors.Label.primaryReverse.color.withAlphaComponent(0.5), for: .highlighted)
switch traitCollection.userInterfaceStyle {
case .dark:
setBackgroundImage(.placeholder(color: Asset.Scene.Profile.RelationshipButton.backgroundDark.color), for: .normal)
setBackgroundImage(.placeholder(color: Asset.Scene.Profile.RelationshipButton.backgroundHighlightedDark.color), for: .highlighted)
setBackgroundImage(.placeholder(color: Asset.Scene.Profile.RelationshipButton.backgroundHighlightedDark.color), for: .disabled)
default:
setBackgroundImage(.placeholder(color: Asset.Scene.Profile.RelationshipButton.backgroundLight.color), for: .normal)
setBackgroundImage(.placeholder(color: Asset.Scene.Profile.RelationshipButton.backgroundHighlightedLight.color), for: .highlighted)
setBackgroundImage(.placeholder(color: Asset.Scene.Profile.RelationshipButton.backgroundHighlightedLight.color), for: .disabled)
}
}
}
public extension UserView {
private func prepareButtonStateLayout(for state: ButtonState) {
switch state {
case .none:
verifiedStackView.axis = .horizontal
verifiedStackView.alignment = .leading
verifiedStackCenterSpacerView.isHidden = false
followButton.isHidden = true
default:
verifiedStackView.axis = .vertical
verifiedStackView.alignment = .leading
verifiedStackCenterSpacerView.isHidden = true
followButton.isHidden = false
}
}
@objc private func didTapButton() {
guard let user = viewModel.user else { return }
delegate?.userView(self, didTapButtonWith: currentButtonState, for: user)
}
func setButtonState(_ state: ButtonState) {
currentButtonState = state
prepareButtonStateLayout(for: state)
switch state {
case .follow:
followButton.setTitle(L10n.Common.Controls.Friendship.follow, for: .normal)
followButton.setBackgroundColor(Asset.Colors.Button.userFollow.color, for: .normal)
followButton.setTitleColor(.white, for: .normal)
case .unfollow:
followButton.setTitle(L10n.Common.Controls.Friendship.following, for: .normal)
followButton.setBackgroundColor(Asset.Colors.Button.userFollowing.color, for: .normal)
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followButton.setTitleColor(Asset.Colors.Button.userFollowingTitle.color, for: .normal)
case .blocked:
followButton.setTitle(L10n.Common.Controls.Friendship.blocked, for: .normal)
followButton.setBackgroundColor(Asset.Colors.Button.userBlocked.color, for: .normal)
followButton.setTitleColor(.systemRed, for: .normal)
case .none:
break
}
followButton.addTarget(self, action: #selector(didTapButton), for: .touchUpInside)
followButton.titleLabel?.font = UIFontMetrics(forTextStyle: .subheadline).scaledFont(for: .boldSystemFont(ofSize: 15))
}
}