Swiftgram/submodules/TelegramUI/Sources/ChatBotInfoItem.swift

import Foundation
import UIKit
import Display
import AsyncDisplayKit
import SwiftSignalKit
import Postbox
import TelegramCore
import TelegramPresentationData
import TextFormat
import UrlEscaping
import PhotoResources
import AccountContext
import UniversalMediaPlayer
import TelegramUniversalVideoContent
import WallpaperBackgroundNode

private let messageFont = Font.regular(17.0)
private let messageBoldFont = Font.semibold(17.0)
private let messageItalicFont = Font.italic(17.0)
private let messageBoldItalicFont = Font.semiboldItalic(17.0)
private let messageFixedFont = UIFont(name: "Menlo-Regular", size: 16.0) ?? UIFont.systemFont(ofSize: 17.0)

final class ChatBotInfoItem: ListViewItem {
    fileprivate let title: String
    fileprivate let text: String
    fileprivate let photo: TelegramMediaImage?
    fileprivate let video: TelegramMediaFile?
    fileprivate let controllerInteraction: ChatControllerInteraction
    fileprivate let presentationData: ChatPresentationData
    fileprivate let context: AccountContext
    
    init(title: String, text: String, photo: TelegramMediaImage?, video: TelegramMediaFile?, controllerInteraction: ChatControllerInteraction, presentationData: ChatPresentationData, context: AccountContext) {
        self.title = title
        self.text = text
        self.photo = photo
        self.video = video
        self.controllerInteraction = controllerInteraction
        self.presentationData = presentationData
        self.context = context
    }
    
    func nodeConfiguredForParams(async: @escaping (@escaping () -> Void) -> Void, params: ListViewItemLayoutParams, synchronousLoads: Bool, previousItem: ListViewItem?, nextItem: ListViewItem?, completion: @escaping (ListViewItemNode, @escaping () -> (Signal<Void, NoError>?, (ListViewItemApply) -> Void)) -> Void) {
        let configure = {
            let node = ChatBotInfoItemNode()
            
            let nodeLayout = node.asyncLayout()
            let (layout, apply) = nodeLayout(self, params)
            
            node.contentSize = layout.contentSize
            node.insets = layout.insets
            
            Queue.mainQueue().async {
                completion(node, {
                    return (nil, { _ in apply(.None) })
                })
            }
        }
        if Thread.isMainThread {
            async {
                configure()
            }
        } else {
            configure()
        }
    }
    
    func updateNode(async: @escaping (@escaping () -> Void) -> Void, node: @escaping () -> ListViewItemNode, params: ListViewItemLayoutParams, previousItem: ListViewItem?, nextItem: ListViewItem?, animation: ListViewItemUpdateAnimation, completion: @escaping (ListViewItemNodeLayout, @escaping (ListViewItemApply) -> Void) -> Void) {
        Queue.mainQueue().async {
            if let nodeValue = node() as? ChatBotInfoItemNode {
                let nodeLayout = nodeValue.asyncLayout()
                
                async {
                    let (layout, apply) = nodeLayout(self, params)
                    Queue.mainQueue().async {
                        completion(layout, { _ in
                            apply(animation)
                        })
                    }
                }
            }
        }
    }
}

final class ChatBotInfoItemNode: ListViewItemNode {
    var controllerInteraction: ChatControllerInteraction?
    
    let offsetContainer: ASDisplayNode
    let backgroundNode: ASImageNode
    let imageNode: TransformImageNode
    var videoNode: UniversalVideoNode?
    let titleNode: TextNode
    let textNode: TextNode
    private var linkHighlightingNode: LinkHighlightingNode?
    
    private let fetchDisposable = MetaDisposable()
    
    var currentTextAndEntities: (String, [MessageTextEntity])?
    
    private var theme: ChatPresentationThemeData?
    
    private var wallpaperBackgroundNode: WallpaperBackgroundNode?
    private var backgroundContent: WallpaperBubbleBackgroundNode?
    
    private var absolutePosition: (CGRect, CGSize)?
    
    private var item: ChatBotInfoItem?
    
    init() {
        self.offsetContainer = ASDisplayNode()
        
        self.backgroundNode = ASImageNode()
        self.backgroundNode.displaysAsynchronously = false
        self.backgroundNode.displayWithoutProcessing = true
        self.imageNode = TransformImageNode()
        self.textNode = TextNode()
        self.titleNode = TextNode()
        
        super.init(layerBacked: false, dynamicBounce: true, rotated: true)
        
        self.transform = CATransform3DMakeRotation(CGFloat.pi, 0.0, 0.0, 1.0)
        
        self.addSubnode(self.offsetContainer)
        self.offsetContainer.addSubnode(self.backgroundNode)
        self.offsetContainer.addSubnode(self.imageNode)
        self.offsetContainer.addSubnode(self.titleNode)
        self.offsetContainer.addSubnode(self.textNode)
        self.wantsTrailingItemSpaceUpdates = true
    }
    
    deinit {
        self.fetchDisposable.dispose()
    }
    
    private func setup(context: AccountContext, videoFile: TelegramMediaFile?) {
        guard self.videoNode == nil, let file = videoFile else {
            return
        }
        
        let videoContent = NativeVideoContent(
            id: .message(0, MediaId(namespace: 0, id: Int64.random(in: 0..<Int64.max))),
            fileReference: .standalone(media: file),
            streamVideo: .none,
            loopVideo: true,
            enableSound: false,
            fetchAutomatically: true,
            onlyFullSizeThumbnail: false,
            continuePlayingWithoutSoundOnLostAudioSession: false
        )
        let videoNode = UniversalVideoNode(postbox: context.account.postbox, audioSession: context.sharedContext.mediaManager.audioSession, manager: context.sharedContext.mediaManager.universalVideoManager, decoration: VideoDecoration(), content: videoContent, priority: .embedded)
        videoNode.canAttachContent = true
        self.videoNode = videoNode
        
        let cornerRadius = (self.item?.presentationData.chatBubbleCorners.mainRadius ?? 17.0)
        (videoNode.decoration as? VideoDecoration)?.updateCorners(ImageCorners(topLeft: .Corner(cornerRadius), topRight: .Corner(cornerRadius), bottomLeft: .Corner(0.0), bottomRight: .Corner(0.0)))
        
        self.offsetContainer.addSubnode(videoNode)
        
        videoNode.play()
    }
    
    override func didLoad() {
        super.didLoad()
        
        let recognizer = TapLongTapOrDoubleTapGestureRecognizer(target: self, action: #selector(self.tapLongTapOrDoubleTapGesture(_:)))
        recognizer.tapActionAtPoint = { [weak self] point in
            if let strongSelf = self {
                let tapAction = strongSelf.tapActionAtPoint(point, gesture: .tap, isEstimating: true)
                switch tapAction {
                    case .none:
                        break
                    case .ignore:
                        return .fail
                    case .url, .peerMention, .textMention, .botCommand, .hashtag, .instantPage, .wallpaper, .theme, .call, .openMessage, .timecode, .bankCard, .tooltip, .openPollResults, .copy, .largeEmoji:
                        return .waitForSingleTap
                }
            }
            
            return .waitForDoubleTap
        }
        recognizer.highlight = { [weak self] point in
            if let strongSelf = self {
                strongSelf.updateTouchesAtPoint(point)
            }
        }
        self.view.addGestureRecognizer(recognizer)
    }
    
    override func updateAbsoluteRect(_ rect: CGRect, within containerSize: CGSize) {
        super.updateAbsoluteRect(rect, within: containerSize)
        
        self.absolutePosition = (rect, containerSize)
        if let backgroundContent = self.backgroundContent {
            var backgroundFrame = backgroundContent.frame
            backgroundFrame.origin.x += rect.minX
            backgroundFrame.origin.y += containerSize.height - rect.minY
            backgroundContent.update(rect: backgroundFrame, within: containerSize, transition: .immediate)
        }
    }
    
    func asyncLayout() -> (_ item: ChatBotInfoItem, _ width: ListViewItemLayoutParams) -> (ListViewItemNodeLayout, (ListViewItemUpdateAnimation) -> Void) {
        let makeImageLayout = self.imageNode.asyncLayout()
        let makeTitleLayout = TextNode.asyncLayout(self.titleNode)
        let makeTextLayout = TextNode.asyncLayout(self.textNode)
        let currentTextAndEntities = self.currentTextAndEntities
        let currentTheme = self.theme
        
        let currentItem = self.item
        
        return { [weak self] item, params in
            self?.item = item
            
            var updatedBackgroundImage: UIImage?
            if currentTheme != item.presentationData.theme {
                updatedBackgroundImage = PresentationResourcesChat.chatInfoItemBackgroundImage(item.presentationData.theme.theme, wallpaper: !item.presentationData.theme.wallpaper.isEmpty)
            }
                        
            var updatedTextAndEntities: (String, [MessageTextEntity])
            if let (text, entities) = currentTextAndEntities {
                if text == item.text {
                    updatedTextAndEntities = (text, entities)
                } else {
                    updatedTextAndEntities = (item.text, generateTextEntities(item.text, enabledTypes: .all))
                }
            } else {
                updatedTextAndEntities = (item.text, generateTextEntities(item.text, enabledTypes: .all))
            }
            
            let attributedText = stringWithAppliedEntities(updatedTextAndEntities.0, entities: updatedTextAndEntities.1, baseColor: item.presentationData.theme.theme.chat.message.infoPrimaryTextColor, linkColor: item.presentationData.theme.theme.chat.message.infoLinkTextColor, baseFont: messageFont, linkFont: messageFont, boldFont: messageBoldFont, italicFont: messageItalicFont, boldItalicFont: messageBoldItalicFont, fixedFont: messageFixedFont, blockQuoteFont: messageFont, message: nil)
            
            let horizontalEdgeInset: CGFloat = 10.0 + params.leftInset
            let horizontalContentInset: CGFloat = 12.0
            let verticalItemInset: CGFloat = 10.0
            let verticalContentInset: CGFloat = 8.0
            
            let (titleLayout, titleApply) = makeTitleLayout(TextNodeLayoutArguments(attributedString: NSAttributedString(string: item.title, font: messageBoldFont, textColor: item.presentationData.theme.theme.chat.message.infoPrimaryTextColor), backgroundColor: nil, maximumNumberOfLines: 0, truncationType: .end, constrainedSize: CGSize(width: params.width - horizontalEdgeInset * 2.0 - horizontalContentInset * 2.0, height: CGFloat.greatestFiniteMagnitude), alignment: .natural, cutout: nil, insets: UIEdgeInsets()))
            
            let (textLayout, textApply) = makeTextLayout(TextNodeLayoutArguments(attributedString: attributedText, backgroundColor: nil, maximumNumberOfLines: 0, truncationType: .end, constrainedSize: CGSize(width: params.width - horizontalEdgeInset * 2.0 - horizontalContentInset * 2.0, height: CGFloat.greatestFiniteMagnitude), alignment: .natural, cutout: nil, insets: UIEdgeInsets()))
            
            let textSpacing: CGFloat = 1.0
            let textSize = CGSize(width: max(titleLayout.size.width, textLayout.size.width), height: (titleLayout.size.height + (titleLayout.size.width.isZero ? 0.0 : textSpacing) + textLayout.size.height))
            
            var mediaUpdated = false
            if let media = item.photo {
                if let currentMedia = currentItem?.photo {
                    mediaUpdated = !media.isSemanticallyEqual(to: currentMedia)
                } else {
                    mediaUpdated = true
                }
            }
            
            var updatedImageSignal: Signal<(TransformImageArguments) -> DrawingContext?, NoError>?

            var imageSize = CGSize()
            var imageDimensions = CGSize()
            var imageApply: (() -> Void)?
            let imageInset: CGFloat = 1.0 + UIScreenPixel
            if let image = item.photo, let dimensions = largestImageRepresentation(image.representations)?.dimensions {
                imageDimensions = dimensions.cgSize.aspectFitted(CGSize(width: textSize.width + horizontalContentInset * 2.0 - imageInset * 2.0, height: CGFloat.greatestFiniteMagnitude))
                imageSize = imageDimensions
                imageSize.height += 4.0
                
                let arguments = TransformImageArguments(corners: ImageCorners(topLeft: .Corner(17.0), topRight: .Corner(17.0), bottomLeft: .Corner(0.0), bottomRight: .Corner(0.0)), imageSize: dimensions.cgSize.aspectFilled(imageDimensions), boundingSize: imageDimensions, intrinsicInsets: UIEdgeInsets(), emptyColor: item.presentationData.theme.theme.list.mediaPlaceholderColor)
                imageApply = makeImageLayout(arguments)
                
                if mediaUpdated {
                    updatedImageSignal = chatMessagePhoto(postbox: item.context.account.postbox, photoReference: .standalone(media: image), synchronousLoad: true, highQuality: false)
                }
            }
            if let video = item.video, let dimensions = video.dimensions {
                imageDimensions = dimensions.cgSize.aspectFitted(CGSize(width: textSize.width + horizontalContentInset * 2.0 - imageInset * 2.0, height: CGFloat.greatestFiniteMagnitude))
                imageSize = imageDimensions
                imageSize.height += 4.0
            }
            
            let backgroundFrame = CGRect(origin: CGPoint(x: floor((params.width - textSize.width - horizontalContentInset * 2.0) / 2.0), y: verticalItemInset + 4.0), size: CGSize(width: textSize.width + horizontalContentInset * 2.0, height: imageSize.height + textSize.height + verticalContentInset * 2.0))
            let titleFrame = CGRect(origin: CGPoint(x: backgroundFrame.origin.x + horizontalContentInset, y: backgroundFrame.origin.y + imageSize.height + verticalContentInset), size: titleLayout.size)
            let textFrame = CGRect(origin: CGPoint(x: backgroundFrame.origin.x + horizontalContentInset, y: backgroundFrame.origin.y + imageSize.height + verticalContentInset + titleLayout.size.height + (titleLayout.size.width.isZero ? 0.0 : textSpacing)), size: textLayout.size)
            let imageFrame = CGRect(origin: CGPoint(x: backgroundFrame.origin.x + imageInset, y: backgroundFrame.origin.y + imageInset), size: imageDimensions)
            
            let itemLayout = ListViewItemNodeLayout(contentSize: CGSize(width: params.width, height: imageSize.height + textLayout.size.height + verticalItemInset * 2.0 + verticalContentInset * 2.0 + titleLayout.size.height + (titleLayout.size.width.isZero ? 0.0 : textSpacing) - 3.0), insets: UIEdgeInsets())
            return (itemLayout, { _ in
                if let strongSelf = self {
                    strongSelf.theme = item.presentationData.theme
                    
                    if let updatedBackgroundImage = updatedBackgroundImage {
                        strongSelf.backgroundNode.image = updatedBackgroundImage
                    }
                    
                    strongSelf.controllerInteraction = item.controllerInteraction
                    strongSelf.currentTextAndEntities = updatedTextAndEntities
                    
                    if let imageApply = imageApply {
                        let _ = imageApply()
                        if let updatedImageSignal = updatedImageSignal {
                            strongSelf.imageNode.setSignal(updatedImageSignal)
                            if let image = item.photo {
                                strongSelf.fetchDisposable.set(chatMessagePhotoInteractiveFetched(context: item.context, photoReference: .standalone(media: image), displayAtSize: nil, storeToDownloadsPeerType: nil).start())
                            }
                        }
                        strongSelf.imageNode.isHidden = false
                    } else {
                        strongSelf.imageNode.isHidden = true
                    }
                    strongSelf.imageNode.frame = imageFrame
                    
                    let _ = titleApply()
                    let _ = textApply()
                    strongSelf.offsetContainer.frame = CGRect(origin: CGPoint(), size: itemLayout.contentSize)
                    strongSelf.backgroundNode.frame = backgroundFrame
                    strongSelf.titleNode.frame = titleFrame
                    strongSelf.textNode.frame = textFrame
                    
                    if item.controllerInteraction.presentationContext.backgroundNode?.hasExtraBubbleBackground() == true {
                        if strongSelf.backgroundContent == nil, let backgroundContent = item.controllerInteraction.presentationContext.backgroundNode?.makeBubbleBackground(for: .free) {
                            backgroundContent.clipsToBounds = true

                            strongSelf.backgroundContent = backgroundContent
                            strongSelf.insertSubnode(backgroundContent, at: 0)
                        }
                    } else {
                        strongSelf.backgroundContent?.removeFromSupernode()
                        strongSelf.backgroundContent = nil
                    }
                    
                    if let backgroundContent = strongSelf.backgroundContent {
                        strongSelf.backgroundNode.isHidden = true
                        backgroundContent.cornerRadius = item.presentationData.chatBubbleCorners.mainRadius
                        backgroundContent.frame = backgroundFrame
                        if let (rect, containerSize) = strongSelf.absolutePosition {
                            var backgroundFrame = backgroundContent.frame
                            backgroundFrame.origin.x += rect.minX
                            backgroundFrame.origin.y += containerSize.height - rect.minY
                            backgroundContent.update(rect: backgroundFrame, within: containerSize, transition: .immediate)
                        }
                    } else {
                        strongSelf.backgroundNode.isHidden = false
                    }
                    
                    strongSelf.setup(context: item.context, videoFile: item.video)
                    if let videoNode = strongSelf.videoNode {
                        videoNode.updateLayout(size: imageFrame.size, transition: .immediate)
                        videoNode.frame = imageFrame
                    }
                }
            })
        }
    }
    
    override func updateTrailingItemSpace(_ height: CGFloat, transition: ContainedViewLayoutTransition) {
        if height.isLessThanOrEqualTo(0.0) {
            transition.updateFrame(node: self.offsetContainer, frame: CGRect(origin: CGPoint(), size: self.offsetContainer.bounds.size))
        } else {
            transition.updateFrame(node: self.offsetContainer, frame: CGRect(origin: CGPoint(x: 0.0, y: -floorToScreenPixels(height / 2.0)), size: self.offsetContainer.bounds.size))
        }
    }
    
    override func animateAdded(_ currentTimestamp: Double, duration: Double) {
        self.layer.animateAlpha(from: 0.0, to: 1.0, duration: duration * 0.5)
    }
    
    override func animateInsertion(_ currentTimestamp: Double, duration: Double, short: Bool) {
        self.layer.animateAlpha(from: 0.0, to: 1.0, duration: duration * 0.5)
    }
    
    override func animateRemoved(_ currentTimestamp: Double, duration: Double) {
        self.layer.animateAlpha(from: 1.0, to: 0.0, duration: duration * 0.5, removeOnCompletion: false)
    }
    
    override func point(inside point: CGPoint, with event: UIEvent?) -> Bool {
        let result = super.point(inside: point, with: event)
        let extra = self.offsetContainer.frame.contains(point)
        return result || extra
    }
    
    func updateTouchesAtPoint(_ point: CGPoint?) {
        if let item = self.item {
            var rects: [CGRect]?
            if let point = point {
                let textNodeFrame = self.textNode.frame
                if let (index, attributes) = self.textNode.attributesAtPoint(CGPoint(x: point.x - self.offsetContainer.frame.minX - textNodeFrame.minX, y: point.y - self.offsetContainer.frame.minY - textNodeFrame.minY)) {
                    let possibleNames: [String] = [
                        TelegramTextAttributes.URL,
                        TelegramTextAttributes.PeerMention,
                        TelegramTextAttributes.PeerTextMention,
                        TelegramTextAttributes.BotCommand,
                        TelegramTextAttributes.Hashtag
                    ]
                    for name in possibleNames {
                        if let _ = attributes[NSAttributedString.Key(rawValue: name)] {
                            rects = self.textNode.attributeRects(name: name, at: index)
                            break
                        }
                    }
                }
            }
            
            if let rects = rects {
                let linkHighlightingNode: LinkHighlightingNode
                if let current = self.linkHighlightingNode {
                    linkHighlightingNode = current
                } else {
                    linkHighlightingNode = LinkHighlightingNode(color: item.presentationData.theme.theme.chat.message.incoming.linkHighlightColor)
                    self.linkHighlightingNode = linkHighlightingNode
                    self.offsetContainer.insertSubnode(linkHighlightingNode, belowSubnode: self.textNode)
                }
                linkHighlightingNode.frame = self.textNode.frame
                linkHighlightingNode.updateRects(rects)
            } else if let linkHighlightingNode = self.linkHighlightingNode {
                self.linkHighlightingNode = nil
                linkHighlightingNode.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.18, removeOnCompletion: false, completion: { [weak linkHighlightingNode] _ in
                    linkHighlightingNode?.removeFromSupernode()
                })
            }
        }
    }
    
    func tapActionAtPoint(_ point: CGPoint, gesture: TapLongTapOrDoubleTapGesture, isEstimating: Bool) -> ChatMessageBubbleContentTapAction {
        let textNodeFrame = self.textNode.frame
        if let (index, attributes) = self.textNode.attributesAtPoint(CGPoint(x: point.x - self.offsetContainer.frame.minX - textNodeFrame.minX, y: point.y - self.offsetContainer.frame.minY - textNodeFrame.minY)) {
            if let url = attributes[NSAttributedString.Key(rawValue: TelegramTextAttributes.URL)] as? String {
                var concealed = true
                if let (attributeText, fullText) = self.textNode.attributeSubstring(name: TelegramTextAttributes.URL, index: index) {
                    concealed = !doesUrlMatchText(url: url, text: attributeText, fullText: fullText)
                }
                return .url(url: url, concealed: concealed)
            } else if let peerMention = attributes[NSAttributedString.Key(rawValue: TelegramTextAttributes.PeerMention)] as? TelegramPeerMention {
                return .peerMention(peerMention.peerId, peerMention.mention)
            } else if let peerName = attributes[NSAttributedString.Key(rawValue: TelegramTextAttributes.PeerTextMention)] as? String {
                return .textMention(peerName)
            } else if let botCommand = attributes[NSAttributedString.Key(rawValue: TelegramTextAttributes.BotCommand)] as? String {
                return .botCommand(botCommand)
            } else if let hashtag = attributes[NSAttributedString.Key(rawValue: TelegramTextAttributes.Hashtag)] as? TelegramHashtag {
                return .hashtag(hashtag.peerName, hashtag.hashtag)
            } else {
                return .none
            }
        } else {
            return .none
        }
    }
    
    @objc func tapLongTapOrDoubleTapGesture(_ recognizer: TapLongTapOrDoubleTapGestureRecognizer) {
        switch recognizer.state {
            case .ended:
                if let (gesture, location) = recognizer.lastRecognizedGestureAndLocation {
                    switch gesture {
                        case .tap:
                            let tapAction = self.tapActionAtPoint(location, gesture: gesture, isEstimating: false)
                            switch tapAction {
                                case .none, .ignore:
                                    break
                                case let .url(url, concealed):
                                    self.item?.controllerInteraction.openUrl(url, concealed, nil, nil)
                                case let .peerMention(peerId, _):
                                    self.item?.controllerInteraction.openPeer(peerId, .chat(textInputState: nil, subject: nil, peekData: nil), nil, false, nil)
                                case let .textMention(name):
                                    self.item?.controllerInteraction.openPeerMention(name)
                                case let .botCommand(command):
                                    self.item?.controllerInteraction.sendBotCommand(nil, command)
                                case let .hashtag(peerName, hashtag):
                                    self.item?.controllerInteraction.openHashtag(peerName, hashtag)
                                default:
                                    break
                            }
                        case .longTap, .doubleTap:
                            if let item = self.item, self.backgroundNode.frame.contains(location) {
                                let tapAction = self.tapActionAtPoint(location, gesture: gesture, isEstimating: false)
                                switch tapAction {
                                    case .none, .ignore:
                                        break
                                    case let .url(url, _):
                                        item.controllerInteraction.longTap(.url(url), nil)
                                    case let .peerMention(peerId, mention):
                                        item.controllerInteraction.longTap(.peerMention(peerId, mention), nil)
                                    case let .textMention(name):
                                        item.controllerInteraction.longTap(.mention(name), nil)
                                    case let .botCommand(command):
                                        item.controllerInteraction.longTap(.command(command), nil)
                                    case let .hashtag(_, hashtag):
                                        item.controllerInteraction.longTap(.hashtag(hashtag), nil)
                                    default:
                                        break
                                }
                            }
                        default:
                            break
                    }
                }
            default:
                break
        }
    }
}

private final class VideoDecoration: UniversalVideoDecoration {
    public let backgroundNode: ASDisplayNode? = nil
    public let contentContainerNode: ASDisplayNode
    public let foregroundNode: ASDisplayNode? = nil
    
    private var contentNode: (ASDisplayNode & UniversalVideoContentNode)?
    
    private var validLayoutSize: CGSize?
    
    public init() {
        self.contentContainerNode = ASDisplayNode()
    }
    
    public func updateContentNode(_ contentNode: (UniversalVideoContentNode & ASDisplayNode)?) {
        if self.contentNode !== contentNode {
            let previous = self.contentNode
            self.contentNode = contentNode
            
            if let previous = previous {
                if previous.supernode === self.contentContainerNode {
                    previous.removeFromSupernode()
                }
            }
            
            if let contentNode = contentNode {
                if contentNode.supernode !== self.contentContainerNode {
                    self.contentContainerNode.addSubnode(contentNode)
                    if let validLayoutSize = self.validLayoutSize {
                        contentNode.frame = CGRect(origin: CGPoint(), size: validLayoutSize)
                        contentNode.updateLayout(size: validLayoutSize, transition: .immediate)
                    }
                }
            }
        }
    }
    
    public func updateCorners(_ corners: ImageCorners) {
        self.contentContainerNode.clipsToBounds = true
        if isRoundEqualCorners(corners) {
            self.contentContainerNode.cornerRadius = corners.topLeft.radius
        } else {
            let boundingSize: CGSize = CGSize(width: max(corners.topLeft.radius, corners.bottomLeft.radius) + max(corners.topRight.radius, corners.bottomRight.radius), height: max(corners.topLeft.radius, corners.topRight.radius) + max(corners.bottomLeft.radius, corners.bottomRight.radius))
            let size: CGSize = CGSize(width: boundingSize.width + corners.extendedEdges.left + corners.extendedEdges.right, height: boundingSize.height + corners.extendedEdges.top + corners.extendedEdges.bottom)
            let arguments = TransformImageArguments(corners: corners, imageSize: size, boundingSize: boundingSize, intrinsicInsets: UIEdgeInsets())
            let context = DrawingContext(size: size, clear: true)
            context.withContext { ctx in
                ctx.setFillColor(UIColor.black.cgColor)
                ctx.fill(arguments.drawingRect)
            }
            addCorners(context, arguments: arguments)
            
            if let maskImage = context.generateImage() {
                let mask = CALayer()
                mask.contents = maskImage.cgImage
                mask.contentsScale = maskImage.scale
                mask.contentsCenter = CGRect(x: max(corners.topLeft.radius, corners.bottomLeft.radius) / maskImage.size.width, y: max(corners.topLeft.radius, corners.topRight.radius) / maskImage.size.height, width: (maskImage.size.width - max(corners.topLeft.radius, corners.bottomLeft.radius) - max(corners.topRight.radius, corners.bottomRight.radius)) / maskImage.size.width, height: (maskImage.size.height - max(corners.topLeft.radius, corners.topRight.radius) - max(corners.bottomLeft.radius, corners.bottomRight.radius)) / maskImage.size.height)
                
                self.contentContainerNode.layer.mask = mask
                self.contentContainerNode.layer.mask?.frame = self.contentContainerNode.bounds
            }
        }
    }
    
    public func updateClippingFrame(_ frame: CGRect, completion: (() -> Void)?) {
        self.contentContainerNode.layer.animate(from: NSValue(cgRect: self.contentContainerNode.bounds), to: NSValue(cgRect: frame), keyPath: "bounds", timingFunction: kCAMediaTimingFunctionSpring, duration: 0.25, removeOnCompletion: false, completion: { _ in
        })

        if let maskLayer = self.contentContainerNode.layer.mask {
            maskLayer.animate(from: NSValue(cgRect: self.contentContainerNode.bounds), to: NSValue(cgRect: frame), keyPath: "bounds", timingFunction: kCAMediaTimingFunctionSpring, duration: 0.25, removeOnCompletion: false, completion: { _ in
            })
            
            maskLayer.animate(from: NSValue(cgPoint: maskLayer.position), to: NSValue(cgPoint: CGPoint(x: frame.midX, y: frame.midY)), keyPath: "position", timingFunction: kCAMediaTimingFunctionSpring, duration: 0.25, removeOnCompletion: false, completion: { _ in
            })
        }
        
        if let contentNode = self.contentNode {
            contentNode.layer.animate(from: NSValue(cgPoint: contentNode.layer.position), to: NSValue(cgPoint: CGPoint(x: frame.midX, y: frame.midY)), keyPath: "position", timingFunction: kCAMediaTimingFunctionSpring, duration: 0.25, removeOnCompletion: false, completion: { _ in
                completion?()
            })
        }
    }
    
    public func updateContentNodeSnapshot(_ snapshot: UIView?) {
    }
    
    public func updateLayout(size: CGSize, transition: ContainedViewLayoutTransition) {
        self.validLayoutSize = size
        
        let bounds = CGRect(origin: CGPoint(), size: size)
        if let backgroundNode = self.backgroundNode {
            transition.updateFrame(node: backgroundNode, frame: bounds)
        }
        if let foregroundNode = self.foregroundNode {
            transition.updateFrame(node: foregroundNode, frame: bounds)
        }
        transition.updateFrame(node: self.contentContainerNode, frame: bounds)
        if let maskLayer = self.contentContainerNode.layer.mask {
            transition.updateFrame(layer: maskLayer, frame: bounds)
        }
        if let contentNode = self.contentNode {
            transition.updateFrame(node: contentNode, frame: CGRect(origin: CGPoint(), size: size))
            contentNode.updateLayout(size: size, transition: transition)
        }
    }
    
    public func setStatus(_ status: Signal<MediaPlayerStatus?, NoError>) {
    }
    
    public func tap() {
    }
}