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final class CianElement: UICollectionViewCell {
enum State {
case pending(onButtonAction: () -> Void)
case offer(model: CianItemModel?, onButtonAction: (CianItemModel?) -> Void)
case error(onButtonAction: () -> Void)
}
@IBOutlet private var contentViews: [UIView]!
@IBOutlet private weak var pendingView: UIView!
@IBOutlet private weak var offerView: UIView!
@IBOutlet private weak var more: UIButton!
@IBOutlet private weak var price: UILabel! {
didSet {
price.font = UIFont.medium14()
price.textColor = UIColor.linkBlue()
}
}
@IBOutlet private weak var descr: UILabel! {
didSet {
descr.font = UIFont.medium14()
descr.textColor = UIColor.blackPrimaryText()
}
}
@IBOutlet private weak var address: UILabel! {
didSet {
address.font = UIFont.regular12()
address.textColor = UIColor.blackSecondaryText()
}
}
@IBOutlet private weak var details: UIButton! {
didSet {
details.setTitleColor(UIColor.linkBlue(), for: .normal)
details.setBackgroundColor(UIColor.blackOpaque(), for: .normal)
}
}
private var isLastCell = false {
didSet {
more.isHidden = !isLastCell
price.isHidden = isLastCell
descr.isHidden = isLastCell
address.isHidden = isLastCell
details.isHidden = isLastCell
}
}
@IBOutlet private weak var pendingSpinnerView: UIImageView! {
didSet {
pendingSpinnerView.tintColor = UIColor.linkBlue()
}
}
@IBOutlet private weak var pendingTitleTopOffset: NSLayoutConstraint!
@IBOutlet private weak var pendingTitle: UILabel! {
didSet {
pendingTitle.font = UIFont.medium14()
pendingTitle.textColor = UIColor.blackPrimaryText()
pendingTitle.text = L("preloader_cian_title")
}
}
@IBOutlet private weak var pendingDescription: UILabel! {
didSet {
pendingDescription.font = UIFont.regular12()
pendingDescription.textColor = UIColor.blackSecondaryText()
pendingDescription.text = L("preloader_cian_message")
}
}
@IBAction func onButtonAction() {
switch state! {
case let .pending(action): action()
case let .offer(model, action): action(model)
case let .error(action): action()
}
}
var state: State! {
didSet {
setupAppearance()
setNeedsLayout()
contentViews.forEach { $0.isHidden = false }
let visibleView: UIView
var pendingSpinnerViewAlpha: CGFloat = 1
switch state! {
case .pending:
visibleView = pendingView
configPending()
case let .offer(model, _):
visibleView = offerView
configOffer(model: model)
case .error:
pendingSpinnerViewAlpha = 0
visibleView = pendingView
configError()
}
UIView.animate(withDuration: kDefaultAnimationDuration,
animations: {
self.pendingSpinnerView.alpha = pendingSpinnerViewAlpha
self.contentViews.forEach { $0.alpha = 0 }
visibleView.alpha = 1
self.layoutIfNeeded()
},
completion: { _ in
self.contentViews.forEach { $0.isHidden = true }
visibleView.isHidden = false
})
}
}
private var isSpinning = false {
didSet {
let animationKey = "SpinnerAnimation"
if isSpinning {
let animation = CABasicAnimation(keyPath: "transform.rotation.z")
animation.fromValue = NSNumber(value: 0)
animation.toValue = NSNumber(value: 2 * Double.pi)
animation.duration = 0.8
animation.repeatCount = Float.infinity
pendingSpinnerView.layer.add(animation, forKey: animationKey)
} else {
pendingSpinnerView.layer.removeAnimation(forKey: animationKey)
}
}
}
private func setupAppearance() {
backgroundColor = UIColor.white()
layer.cornerRadius = 6
layer.borderWidth = 1
layer.borderColor = UIColor.blackDividers().cgColor
}
private func configPending() {
isSpinning = true
details.setTitle(L("preloader_cian_button"), for: .normal)
pendingTitleTopOffset.priority = UILayoutPriority.defaultLow
}
private func configError() {
isSpinning = false
details.setTitle(L("preloader_cian_button"), for: .normal)
pendingTitleTopOffset.priority = UILayoutPriority.defaultHigh
}
private func configOffer(model: CianItemModel?) {
isSpinning = false
if let model = model {
isLastCell = false
let priceFormatter = NumberFormatter()
priceFormatter.usesGroupingSeparator = true
if let priceString = priceFormatter.string(from: NSNumber(value: model.priceRur)) {
price.text = "\(priceString) \(L("rub_month"))"
} else {
price.isHidden = true
}
let descrFormat = L("room").replacingOccurrences(of: "%s", with: "%@")
descr.text = String(format: descrFormat, arguments: ["\(model.roomsCount)"])
address.text = model.address
details.setTitle(L("details"), for: .normal)
} else {
isLastCell = true
more.setBackgroundImage(UIColor.isNightMode() ? #imageLiteral(resourceName: "btn_float_more_dark") : #imageLiteral(resourceName: "btn_float_more_light"), for: .normal)
backgroundColor = UIColor.clear
layer.borderColor = UIColor.clear.cgColor
}
}
}
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