Swiftgram/submodules/SettingsUI/Sources/Themes/WallpaperGalleryItem.swift

import Foundation
import UIKit
import Display
import AsyncDisplayKit
import SwiftSignalKit
import Postbox
import TelegramCore
import LegacyComponents
import TelegramPresentationData
import TelegramUIPreferences
import ProgressNavigationButtonNode
import MediaResources
import AccountContext
import RadialStatusNode
import PhotoResources
import GalleryUI
import LocalMediaResources
import WallpaperResources
import AppBundle

struct WallpaperGalleryItemArguments {
    let colorPreview: Bool
    let isColorsList: Bool
    let patternEnabled: Bool
    
    init(colorPreview: Bool = false, isColorsList: Bool = false, patternEnabled: Bool = false) {
        self.colorPreview = colorPreview
        self.isColorsList = isColorsList
        self.patternEnabled = patternEnabled
    }
}

class WallpaperGalleryItem: GalleryItem {
    let context: AccountContext
    let entry: WallpaperGalleryEntry
    let arguments: WallpaperGalleryItemArguments
    
    init(context: AccountContext, entry: WallpaperGalleryEntry, arguments: WallpaperGalleryItemArguments) {
        self.context = context
        self.entry = entry
        self.arguments = arguments
    }
    
    func node() -> GalleryItemNode {
        let node = WallpaperGalleryItemNode(context: self.context)
        node.setEntry(self.entry, arguments: self.arguments)
        return node
    }
    
    func updateNode(node: GalleryItemNode) {
        if let node = node as? WallpaperGalleryItemNode {
            node.setEntry(self.entry, arguments: self.arguments)
        }
    }
    
    func thumbnailItem() -> (Int64, GalleryThumbnailItem)? {
        return nil
    }
}

private let progressDiameter: CGFloat = 50.0
private let motionAmount: CGFloat = 32.0

private func reference(for resource: MediaResource, media: Media, message: Message?) -> MediaResourceReference {
    if let message = message {
        return .media(media: .message(message: MessageReference(message), media: media), resource: resource)
    }
    return .wallpaper(resource: resource)
}

final class WallpaperGalleryItemNode: GalleryItemNode {
    private let context: AccountContext
    var entry: WallpaperGalleryEntry?
    private var colorPreview: Bool = false
    private var contentSize: CGSize?
    private var arguments = WallpaperGalleryItemArguments()
    
    let wrapperNode: ASDisplayNode
    let imageNode: TransformImageNode
    private let statusNode: RadialStatusNode
    private let blurredNode: BlurredImageNode
    let cropNode: WallpaperCropNode
    
    private var blurButtonNode: WallpaperOptionButtonNode
    private var motionButtonNode: WallpaperOptionButtonNode
    private var patternButtonNode: WallpaperOptionButtonNode
    
    fileprivate let _ready = Promise<Void>()
    private let fetchDisposable = MetaDisposable()
    private let statusDisposable = MetaDisposable()
    private let colorDisposable = MetaDisposable()
    
    let subtitle = Promise<String?>(nil)
    let status = Promise<MediaResourceStatus>(.Local)
    let actionButton = Promise<UIBarButtonItem?>(nil)
    var action: (() -> Void)?
    var requestPatternPanel: ((Bool) -> Void)?
    
    private var validLayout: ContainerViewLayout?
    private var validOffset: CGFloat?
    
    init(context: AccountContext) {
        self.context = context
        
        self.wrapperNode = ASDisplayNode()
        self.imageNode = TransformImageNode()
        self.imageNode.contentAnimations = .subsequentUpdates
        self.cropNode = WallpaperCropNode()
        self.statusNode = RadialStatusNode(backgroundNodeColor: UIColor(white: 0.0, alpha: 0.6))
        self.statusNode.frame = CGRect(x: 0.0, y: 0.0, width: progressDiameter, height: progressDiameter)
        self.statusNode.isUserInteractionEnabled = false
        
        self.blurredNode = BlurredImageNode()
        
        let presentationData = context.sharedContext.currentPresentationData.with { $0 }
        self.blurButtonNode = WallpaperOptionButtonNode(title: presentationData.strings.WallpaperPreview_Blurred, value: .check(false))
        self.blurButtonNode.setEnabled(false)
        self.motionButtonNode = WallpaperOptionButtonNode(title: presentationData.strings.WallpaperPreview_Motion, value: .check(false))
        self.motionButtonNode.setEnabled(false)
        self.patternButtonNode = WallpaperOptionButtonNode(title: presentationData.strings.WallpaperPreview_Pattern, value: .check(false))
        self.patternButtonNode.setEnabled(false)
        
        super.init()
        
        self.clipsToBounds = true
        self.backgroundColor = .black
        
        self.imageNode.imageUpdated = { [weak self] _ in
            self?._ready.set(.single(Void()))
        }
        
        self.imageNode.view.contentMode = .scaleAspectFill
        self.imageNode.clipsToBounds = true
        
        self.addSubnode(self.wrapperNode)
        self.addSubnode(self.statusNode)
        
        self.addSubnode(self.blurButtonNode)
        self.addSubnode(self.motionButtonNode)
        self.addSubnode(self.patternButtonNode)
        
        self.blurButtonNode.addTarget(self, action: #selector(self.toggleBlur), forControlEvents: .touchUpInside)
        self.motionButtonNode.addTarget(self, action: #selector(self.toggleMotion), forControlEvents: .touchUpInside)
        self.patternButtonNode.addTarget(self, action: #selector(self.togglePattern), forControlEvents: .touchUpInside)
    }
    
    deinit {
        self.fetchDisposable.dispose()
        self.statusDisposable.dispose()
        self.colorDisposable.dispose()
    }
    
    var cropRect: CGRect? {
        guard let entry = self.entry else {
            return nil
        }
        switch entry {
            case .asset, .contextResult:
                return self.cropNode.cropRect
            default:
                return nil
        }
    }
    
    override func ready() -> Signal<Void, NoError> {
        return self._ready.get()
    }
    
    @objc private func actionPressed() {
        self.action?()
    }
    
    func setEntry(_ entry: WallpaperGalleryEntry, arguments: WallpaperGalleryItemArguments) {
        let previousArguments = self.arguments
        self.arguments = arguments
        
        if self.arguments.colorPreview != previousArguments.colorPreview {
            if self.arguments.colorPreview {
                self.imageNode.contentAnimations = []
            } else {
                self.imageNode.contentAnimations = .subsequentUpdates
            }
        }
        
        if self.entry != entry || self.arguments.colorPreview != previousArguments.colorPreview {
            let previousEntry = self.entry
            self.entry = entry
            if previousEntry != entry {
                self.preparePatternEditing()
            }
            
            self.patternButtonNode.isSelected = self.arguments.patternEnabled
            
            let imagePromise = Promise<UIImage?>()
            
            let signal: Signal<(TransformImageArguments) -> DrawingContext?, NoError>
            let fetchSignal: Signal<FetchResourceSourceType, FetchResourceError>
            let statusSignal: Signal<MediaResourceStatus, NoError>
            let subtitleSignal: Signal<String?, NoError>
            var actionSignal: Signal<UIBarButtonItem?, NoError> = .single(nil)
            var colorSignal: Signal<UIColor, NoError> = serviceColor(from: imagePromise.get())
            var color: UIColor?
            
            let displaySize: CGSize
            let contentSize: CGSize
            
            let presentationData = self.context.sharedContext.currentPresentationData.with { $0 }
            let defaultAction = UIBarButtonItem(image: generateTintedImage(image: UIImage(bundleImageName: "Chat/Input/Accessory Panels/MessageSelectionAction"), color: presentationData.theme.rootController.navigationBar.accentTextColor), style: .plain, target: self, action: #selector(self.actionPressed))
            let progressAction = UIBarButtonItem(customDisplayNode: ProgressNavigationButtonNode(color: presentationData.theme.rootController.navigationBar.accentTextColor))
            
            var isBlurrable = true
            
            switch entry {
                case let .wallpaper(wallpaper, message):
                    switch wallpaper {
                        case .builtin:
                            displaySize = CGSize(width: 1308.0, height: 2688.0).fitted(CGSize(width: 1280.0, height: 1280.0)).dividedByScreenScale().integralFloor
                            contentSize = displaySize
                            signal = settingsBuiltinWallpaperImage(account: context.account)
                            fetchSignal = .complete()
                            statusSignal = .single(.Local)
                            subtitleSignal = .single(nil)
                            colorSignal = chatServiceBackgroundColor(wallpaper: wallpaper, mediaBox: self.context.account.postbox.mediaBox)
                            isBlurrable = false
                        case let .color(color):
                            displaySize = CGSize(width: 1.0, height: 1.0)
                            contentSize = displaySize
                            signal = solidColor(UIColor(rgb: UInt32(bitPattern: color)))
                            fetchSignal = .complete()
                            statusSignal = .single(.Local)
                            subtitleSignal = .single(nil)
                            actionSignal = .single(defaultAction)
                            colorSignal = chatServiceBackgroundColor(wallpaper: wallpaper, mediaBox: self.context.account.postbox.mediaBox)
                            isBlurrable = false
                            //self.backgroundColor = UIColor(rgb: UInt32(bitPattern: color))
                        case let .file(file):
                            let dimensions = file.file.dimensions ?? CGSize(width: 100.0, height: 100.0)
                            contentSize = dimensions
                            displaySize = dimensions.dividedByScreenScale().integralFloor
                            
                            var convertedRepresentations: [ImageRepresentationWithReference] = []
                            for representation in file.file.previewRepresentations {
                                convertedRepresentations.append(ImageRepresentationWithReference(representation: representation, reference: reference(for: representation.resource, media: file.file, message: message)))
                            }
                            convertedRepresentations.append(ImageRepresentationWithReference(representation: .init(dimensions: dimensions, resource: file.file.resource), reference: reference(for: file.file.resource, media: file.file, message: message)))
                            
                            if file.isPattern {
                                var patternColor = UIColor(rgb: 0xd6e2ee, alpha: 0.5)
                                var patternIntensity: CGFloat = 0.5
                                if let color = file.settings.color {
                                    if let intensity = file.settings.intensity {
                                        patternIntensity = CGFloat(intensity) / 100.0
                                    }
                                    patternColor = UIColor(rgb: UInt32(bitPattern: color), alpha: patternIntensity)
                                }
                                
                                self.backgroundColor = patternColor.withAlphaComponent(1.0)
                                
                                if let previousEntry = previousEntry, case let .wallpaper(wallpaper, _) = previousEntry, case let .file(previousFile) = wallpaper, file.id == previousFile.id && (file.settings.color != previousFile.settings.color || file.settings.intensity != previousFile.settings.intensity) && self.colorPreview == self.arguments.colorPreview {
                                    
                                    let makeImageLayout = self.imageNode.asyncLayout()
                                    Queue.concurrentDefaultQueue().async {
                                        let apply = makeImageLayout(TransformImageArguments(corners: ImageCorners(), imageSize: displaySize, boundingSize: displaySize, intrinsicInsets: UIEdgeInsets(), emptyColor: patternColor))
                                        Queue.mainQueue().async {
                                            if self.colorPreview {
                                                apply()
                                            }
                                        }
                                    }
                                    return
                                } else if let offset = self.validOffset, self.arguments.colorPreview && abs(offset) > 0.0 {
                                    return
                                }
                                else {
                                    color = patternColor
                                }
                                
                                self.colorPreview = self.arguments.colorPreview
                                
                                signal = patternWallpaperImage(account: context.account, accountManager: context.sharedContext.accountManager, representations: convertedRepresentations, mode: self.arguments.colorPreview ? .fastScreen : .screen, autoFetchFullSize: true)
                                colorSignal = chatServiceBackgroundColor(wallpaper: wallpaper, mediaBox: context.account.postbox.mediaBox)
                                
                                isBlurrable = false
                            } else {
                                let fileReference: FileMediaReference
                                if let message = message {
                                    fileReference = .message(message: MessageReference(message), media: file.file)
                                } else {
                                    fileReference = .standalone(media: file.file)
                                }
                                signal = wallpaperImage(account: context.account, accountManager: context.sharedContext.accountManager, fileReference: fileReference, representations: convertedRepresentations, alwaysShowThumbnailFirst: true, autoFetchFullSize: false)
                            }
                            fetchSignal = fetchedMediaResource(mediaBox: context.account.postbox.mediaBox, reference: convertedRepresentations[convertedRepresentations.count - 1].reference)
                            let account = context.account
                            statusSignal = context.sharedContext.accountManager.mediaBox.resourceStatus(file.file.resource)
                            |> take(1)
                            |> mapToSignal { status -> Signal<MediaResourceStatus, NoError> in
                                if case .Local = status {
                                    return .single(status)
                                } else {
                                    return account.postbox.mediaBox.resourceStatus(file.file.resource)
                                }
                            }
                            if let fileSize = file.file.size {
                                subtitleSignal = .single(dataSizeString(fileSize))
                            } else {
                                subtitleSignal = .single(nil)
                            }
                            actionSignal = .single(defaultAction)
                        case let .image(representations, _):
                            if let largestSize = largestImageRepresentation(representations) {
                                contentSize = largestSize.dimensions
                                displaySize = largestSize.dimensions.dividedByScreenScale().integralFloor
                                
                                let convertedRepresentations: [ImageRepresentationWithReference] = representations.map({ ImageRepresentationWithReference(representation: $0, reference: .wallpaper(resource: $0.resource)) })
                                signal = wallpaperImage(account: context.account, accountManager: context.sharedContext.accountManager, representations: convertedRepresentations, alwaysShowThumbnailFirst: true, autoFetchFullSize: false)
                                
                                if let largestIndex = convertedRepresentations.firstIndex(where: { $0.representation == largestSize }) {
                                    fetchSignal = fetchedMediaResource(mediaBox: context.account.postbox.mediaBox, reference: convertedRepresentations[largestIndex].reference)
                                } else {
                                    fetchSignal = .complete()
                                }
                                let account = context.account
                                statusSignal = context.sharedContext.accountManager.mediaBox.resourceStatus(largestSize.resource)
                                |> take(1)
                                |> mapToSignal { status -> Signal<MediaResourceStatus, NoError> in
                                    if case .Local = status {
                                        return .single(status)
                                    } else {
                                        return account.postbox.mediaBox.resourceStatus(largestSize.resource)
                                    }
                                }
                                if let fileSize = largestSize.resource.size {
                                    subtitleSignal = .single(dataSizeString(fileSize))
                                } else {
                                    subtitleSignal = .single(nil)
                                }
                                
                                actionSignal = self.context.wallpaperUploadManager!.stateSignal()
                                |> filter { state in
                                    return state.wallpaper == wallpaper
                                }
                                |> map { state in
                                    switch state {
                                        case .uploading:
                                            return progressAction
                                        case .uploaded:
                                            return defaultAction
                                        default:
                                            return nil
                                    }
                                }
                            } else {
                                displaySize = CGSize(width: 1.0, height: 1.0)
                                contentSize = displaySize
                                signal = .never()
                                fetchSignal = .complete()
                                statusSignal = .single(.Local)
                                subtitleSignal = .single(nil)
                            }
                    }
                    self.cropNode.removeFromSupernode()
                case let .asset(asset):
                    let dimensions = CGSize(width: asset.pixelWidth, height: asset.pixelHeight)
                    contentSize = dimensions
                    displaySize = dimensions.dividedByScreenScale().integralFloor
                    signal = photoWallpaper(postbox: context.account.postbox, photoLibraryResource: PhotoLibraryMediaResource(localIdentifier: asset.localIdentifier, uniqueId: arc4random64()))
                    fetchSignal = .complete()
                    statusSignal = .single(.Local)
                    subtitleSignal = .single(nil)
                    self.wrapperNode.addSubnode(self.cropNode)
                case let .contextResult(result):
                    var imageDimensions: CGSize?
                    var imageResource: TelegramMediaResource?
                    var thumbnailDimensions: CGSize?
                    var thumbnailResource: TelegramMediaResource?
                    switch result {
                    case let .externalReference(_, _, _, _, _, _, content, thumbnail, _):
                        if let content = content {
                            imageResource = content.resource
                        }
                        if let thumbnail = thumbnail {
                            thumbnailResource = thumbnail.resource
                            thumbnailDimensions = thumbnail.dimensions
                        }
                        if let dimensions = content?.dimensions {
                            imageDimensions = dimensions
                        }
                    case let .internalReference(_, _, _, _, _, image, _, _):
                        if let image = image {
                            if let imageRepresentation = imageRepresentationLargerThan(image.representations, size: CGSize(width: 1000.0, height: 800.0)) {
                                imageDimensions = imageRepresentation.dimensions
                                imageResource = imageRepresentation.resource
                            }
                            if let thumbnailRepresentation = smallestImageRepresentation(image.representations) {
                                thumbnailDimensions = thumbnailRepresentation.dimensions
                                thumbnailResource = thumbnailRepresentation.resource
                            }
                        }
                    }
                    
                    if let imageResource = imageResource, let imageDimensions = imageDimensions {
                        contentSize = imageDimensions
                        displaySize = imageDimensions.dividedByScreenScale().integralFloor
                        
                        var representations: [TelegramMediaImageRepresentation] = []
                        if let thumbnailResource = thumbnailResource, let thumbnailDimensions = thumbnailDimensions {
                            representations.append(TelegramMediaImageRepresentation(dimensions: thumbnailDimensions, resource: thumbnailResource))
                        }
                        representations.append(TelegramMediaImageRepresentation(dimensions: imageDimensions, resource: imageResource))
                        let tmpImage = TelegramMediaImage(imageId: MediaId(namespace: 0, id: 0), representations: representations, immediateThumbnailData: nil, reference: nil, partialReference: nil)
                        
                        signal = chatMessagePhoto(postbox: context.account.postbox, photoReference: .standalone(media: tmpImage))
                        fetchSignal = fetchedMediaResource(mediaBox: context.account.postbox.mediaBox, reference: .media(media: .standalone(media: tmpImage), resource: imageResource))
                        statusSignal = context.account.postbox.mediaBox.resourceStatus(imageResource)
                    } else {
                        displaySize = CGSize(width: 1.0, height: 1.0)
                        contentSize = displaySize
                        signal = .never()
                        fetchSignal = .complete()
                        statusSignal = .single(.Local)
                    }
                    subtitleSignal = .single(nil)
                    self.wrapperNode.addSubnode(self.cropNode)
            }
            self.contentSize = contentSize
            
            if self.cropNode.supernode == nil {
                self.imageNode.contentMode = .scaleAspectFill
                self.wrapperNode.addSubnode(self.imageNode)
            } else {
                self.imageNode.contentMode = .scaleToFill
            }
            
            self.imageNode.setSignal(signal, dispatchOnDisplayLink: false)
            self.imageNode.asyncLayout()(TransformImageArguments(corners: ImageCorners(), imageSize: displaySize, boundingSize: displaySize, intrinsicInsets: UIEdgeInsets(), emptyColor: color))()
            self.imageNode.imageUpdated = { [weak self] image in
                if let strongSelf = self {
                    var image = isBlurrable ? image : nil
                    if let imageToScale = image {
                        let actualSize = CGSize(width: imageToScale.size.width * imageToScale.scale, height: imageToScale.size.height * imageToScale.scale)
                        if actualSize.width > 1280.0 || actualSize.height > 1280.0 {
                            image = TGScaleImageToPixelSize(image, actualSize.fitted(CGSize(width: 1280.0, height: 1280.0)))
                        }
                    }
                    strongSelf.blurredNode.image = image
                    imagePromise.set(.single(image))
                }
            }
            self.fetchDisposable.set(fetchSignal.start())
            
            let statusForegroundColor = UIColor.white
            self.statusDisposable.set((statusSignal
            |> deliverOnMainQueue).start(next: { [weak self] status in
                if let strongSelf = self {
                    let state: RadialStatusNodeState
                    var local = false
                    switch status {
                        case let .Fetching(_, progress):
                            let adjustedProgress = max(progress, 0.027)
                            state = .progress(color: statusForegroundColor, lineWidth: nil, value: CGFloat(adjustedProgress), cancelEnabled: false)
                        case .Local:
                            state = .none
                            local = true
                        case .Remote:
                            state = .progress(color: statusForegroundColor, lineWidth: nil, value: 0.027, cancelEnabled: false)
                    }
                    strongSelf.statusNode.transitionToState(state, completion: {})
                    
                    strongSelf.blurButtonNode.setEnabled(local)
                    strongSelf.motionButtonNode.setEnabled(local)
                    strongSelf.patternButtonNode.setEnabled(local)
                }
            }))
            
            self.subtitle.set(subtitleSignal |> deliverOnMainQueue)
            self.status.set(statusSignal |> deliverOnMainQueue)
            self.actionButton.set(actionSignal |> deliverOnMainQueue)
            
            self.colorDisposable.set((colorSignal
            |> deliverOnMainQueue).start(next: { [weak self] color in
                self?.statusNode.backgroundNodeColor = color
                self?.patternButtonNode.buttonColor = color
                self?.blurButtonNode.buttonColor = color
                self?.motionButtonNode.buttonColor = color
            }))
            
            if let layout = self.validLayout {
                //self.updateButtonsLayout(layout: layout, offset: CGPoint(), transition: animated ? .animated(duration: 0.2, curve: .easeInOut) : .immediate)
            }
        } else if self.arguments.patternEnabled != previousArguments.patternEnabled {
            self.patternButtonNode.isSelected = self.arguments.patternEnabled
            
            if let layout = self.validLayout {
                self.updateButtonsLayout(layout: layout, offset: CGPoint(), transition: .immediate)
            }
        }
    }
    
    override func screenFrameUpdated(_ frame: CGRect) {
        let offset = -frame.minX
        guard self.validOffset != offset else {
            return
        }
        self.validOffset = offset
        if let layout = self.validLayout {
            self.updateWrapperLayout(layout: layout, offset: offset, transition: .immediate)
            self.updateButtonsLayout(layout: layout, offset: CGPoint(x: offset, y: 0.0), transition: .immediate)
        }
    }
    
    func updateDismissTransition(_ value: CGFloat) {
        if let layout = self.validLayout {
            self.updateButtonsLayout(layout: layout, offset: CGPoint(x: 0.0, y: value), transition: .immediate)
        }
    }
    
    var options: WallpaperPresentationOptions {
        get {
            var options: WallpaperPresentationOptions = []
            if self.blurButtonNode.isSelected {
                options.insert(.blur)
            }
            if self.motionButtonNode.isSelected {
                options.insert(.motion)
            }
            return options
        }
        set {
            self.setBlurEnabled(newValue.contains(.blur), animated: false)
            self.blurButtonNode.isSelected = newValue.contains(.blur)
            
            self.setMotionEnabled(newValue.contains(.motion), animated: false)
            self.motionButtonNode.isSelected = newValue.contains(.motion)
        }
    }
    
    @objc func toggleBlur() {
        let value = !self.blurButtonNode.isSelected
        self.blurButtonNode.setSelected(value, animated: true)
        self.setBlurEnabled(value, animated: true)
    }
    
    func setBlurEnabled(_ enabled: Bool, animated: Bool) {
        let blurRadius: CGFloat = 45.0
        
        var animated = animated
        if animated, let layout = self.validLayout {
            animated = min(layout.size.width, layout.size.height) > 321.0
        } else {
            animated = false
        }
        
        if enabled {
            if self.blurredNode.supernode == nil {
                if self.cropNode.supernode != nil {
                    self.blurredNode.frame = self.imageNode.bounds
                    self.imageNode.addSubnode(self.blurredNode)
                } else {
                    self.blurredNode.frame = self.imageNode.bounds
                    self.imageNode.addSubnode(self.blurredNode)
                }
            }
            
            if animated {
                self.blurredNode.blurView.blurRadius = 0.0
                UIView.animate(withDuration: 0.3, delay: 0.0, options: UIView.AnimationOptions(rawValue: 7 << 16), animations: {
                    self.blurredNode.blurView.blurRadius = blurRadius
                }, completion: nil)
            } else {
                self.blurredNode.blurView.blurRadius = blurRadius
            }
        } else {
            if self.blurredNode.supernode != nil {
                if animated {
                    UIView.animate(withDuration: 0.3, delay: 0.0, options: UIView.AnimationOptions(rawValue: 7 << 16), animations: {
                        self.blurredNode.blurView.blurRadius = 0.0
                    }, completion: { finished in
                        if finished {
                            self.blurredNode.removeFromSupernode()
                        }
                    })
                } else {
                    self.blurredNode.removeFromSupernode()
                }
            }
        }
    }
    
    @objc func toggleMotion() {
        let value = !self.motionButtonNode.isSelected
        self.motionButtonNode.setSelected(value, animated: true)
        self.setMotionEnabled(value, animated: true)
    }
    
    var isPatternEnabled: Bool {
        return self.patternButtonNode.isSelected
    }
    
    @objc func togglePattern() {
        let value = !self.patternButtonNode.isSelected
        self.patternButtonNode.setSelected(value, animated: true)
        
        self.requestPatternPanel?(value)
    }
    
    private func preparePatternEditing() {
        if let entry = self.entry, case let .wallpaper(wallpaper, _) = entry, case let .file(file) = wallpaper {
            if let size = file.file.dimensions?.fitted(CGSize(width: 1280.0, height: 1280.0)) {
                let _ = self.context.account.postbox.mediaBox.cachedResourceRepresentation(file.file.resource, representation: CachedPatternWallpaperMaskRepresentation(size: size), complete: false, fetch: true).start()
            }
        }
    }
    
    func setMotionEnabled(_ enabled: Bool, animated: Bool) {
        if enabled {
            let horizontal = UIInterpolatingMotionEffect(keyPath: "center.x", type: .tiltAlongHorizontalAxis)
            horizontal.minimumRelativeValue = motionAmount
            horizontal.maximumRelativeValue = -motionAmount
            
            let vertical = UIInterpolatingMotionEffect(keyPath: "center.y", type: .tiltAlongVerticalAxis)
            vertical.minimumRelativeValue = motionAmount
            vertical.maximumRelativeValue = -motionAmount
            
            let group = UIMotionEffectGroup()
            group.motionEffects = [horizontal, vertical]
            self.wrapperNode.view.addMotionEffect(group)
            
            let scale = (self.frame.width + motionAmount * 2.0) / self.frame.width
            if animated {
                self.wrapperNode.layer.animateScale(from: 1.0, to: scale, duration: 0.2, removeOnCompletion: false)
            } else {
                self.wrapperNode.transform = CATransform3DMakeScale(scale, scale, 1.0)
            }
        } else {
            let position = self.wrapperNode.layer.presentation()?.position
            
            for effect in self.wrapperNode.view.motionEffects {
                self.wrapperNode.view.removeMotionEffect(effect)
            }
            
            let scale = (self.frame.width + motionAmount * 2.0) / self.frame.width
            if animated {
                self.wrapperNode.layer.animateScale(from: scale, to: 1.0, duration: 0.2, removeOnCompletion: false)
                if let position = position {
                    self.wrapperNode.layer.animatePosition(from: position, to: self.wrapperNode.layer.position, duration: 0.2)
                }
            } else {
                self.wrapperNode.transform = CATransform3DIdentity
            }
        }
    }
    
    func updateWrapperLayout(layout: ContainerViewLayout, offset: CGFloat, transition: ContainedViewLayoutTransition) {
        var appliedOffset: CGFloat = 0.0
        if self.arguments.isColorsList {
            appliedOffset = offset
        }
        transition.updatePosition(node: self.wrapperNode, position: CGPoint(x: layout.size.width / 2.0 + appliedOffset, y: layout.size.height / 2.0))
    }
    
    func updateButtonsLayout(layout: ContainerViewLayout, offset: CGPoint, transition: ContainedViewLayoutTransition) {
        let patternButtonSize = self.patternButtonNode.measure(layout.size)
        let blurButtonSize = self.blurButtonNode.measure(layout.size)
        let motionButtonSize = self.motionButtonNode.measure(layout.size)
        
        let maxButtonWidth = max(patternButtonSize.width, max(blurButtonSize.width, motionButtonSize.width))
        let buttonSize = CGSize(width: maxButtonWidth, height: 30.0)
        let alpha = 1.0 - min(1.0, max(0.0, abs(offset.y) / 50.0))
        
        var additionalYOffset: CGFloat = 0.0
        if self.patternButtonNode.isSelected {
            additionalYOffset = -190.0
        }
        
        let leftButtonFrame = CGRect(origin: CGPoint(x: floor(layout.size.width / 2.0 - buttonSize.width - 10.0) + offset.x, y: layout.size.height - 49.0 - layout.intrinsicInsets.bottom - 54.0 + offset.y + additionalYOffset), size: buttonSize)
        let centerButtonFrame = CGRect(origin: CGPoint(x: floor((layout.size.width - buttonSize.width) / 2.0) + offset.x, y: layout.size.height - 49.0 - layout.intrinsicInsets.bottom - 54.0 + offset.y + additionalYOffset), size: buttonSize)
        let rightButtonFrame = CGRect(origin: CGPoint(x: ceil(layout.size.width / 2.0 + 10.0) + offset.x, y: layout.size.height - 49.0 - layout.intrinsicInsets.bottom - 54.0 + offset.y + additionalYOffset), size: buttonSize)
        
        var patternAlpha: CGFloat = 0.0
        var patternFrame = centerButtonFrame
        
        var blurAlpha: CGFloat = 0.0
        var blurFrame = centerButtonFrame
        
        var motionFrame = centerButtonFrame
        var motionAlpha: CGFloat = 0.0
        
        if let entry = self.entry {
            switch entry {
                case .asset:
                    blurAlpha = 1.0
                    blurFrame = leftButtonFrame
                    motionAlpha = 1.0
                    motionFrame = rightButtonFrame
                case .contextResult:
                    blurAlpha = 1.0
                    blurFrame = leftButtonFrame
                    motionAlpha = 1.0
                    motionFrame = rightButtonFrame
                case let .wallpaper(wallpaper, _):
                    switch wallpaper {
                        case .builtin:
                            motionAlpha = 1.0
                        case .color:
                            patternAlpha = 1.0
                            if self.patternButtonNode.isSelected {
                                patternFrame = leftButtonFrame
                                motionAlpha = 1.0
                                motionFrame = rightButtonFrame
                            }
                        case .image:
                            blurAlpha = 1.0
                            blurFrame = leftButtonFrame
                            motionAlpha = 1.0
                            motionFrame = rightButtonFrame
                        case let .file(file):
                            if file.isPattern {
                                motionAlpha = 1.0
                                if self.arguments.isColorsList {
                                    patternAlpha = 1.0
                                    if self.patternButtonNode.isSelected {
                                        patternFrame = leftButtonFrame
                                    }
                                    motionFrame = rightButtonFrame
                                }
                            } else {
                                blurAlpha = 1.0
                                blurFrame = leftButtonFrame
                                motionAlpha = 1.0
                                motionFrame = rightButtonFrame
                            }
                    }
            }
        }
        
        transition.updateFrame(node: self.patternButtonNode, frame: patternFrame)
        transition.updateAlpha(node: self.patternButtonNode, alpha: patternAlpha * alpha)
        
        transition.updateFrame(node: self.blurButtonNode, frame: blurFrame)
        transition.updateAlpha(node: self.blurButtonNode, alpha: blurAlpha * alpha)
        
        transition.updateFrame(node: self.motionButtonNode, frame: motionFrame)
        transition.updateAlpha(node: self.motionButtonNode, alpha: motionAlpha * alpha)
    }
    
    override func containerLayoutUpdated(_ layout: ContainerViewLayout, navigationBarHeight: CGFloat, transition: ContainedViewLayoutTransition) {
        super.containerLayoutUpdated(layout, navigationBarHeight: navigationBarHeight, transition: transition)
        
        var offset: CGFloat = 0.0
        if let validOffset = self.validOffset {
            offset = validOffset
        }
        
        self.wrapperNode.bounds = CGRect(origin: CGPoint(), size: layout.size)
        self.updateWrapperLayout(layout: layout, offset: offset, transition: transition)
        
        if self.cropNode.supernode == nil {
            self.imageNode.frame = self.wrapperNode.bounds
            self.blurredNode.frame = self.imageNode.frame
        } else {
            self.cropNode.frame = self.wrapperNode.bounds
            self.cropNode.containerLayoutUpdated(layout, transition: transition)
            
            if self.cropNode.supernode != nil, let contentSize = self.contentSize, self.cropNode.zoomableContent == nil {
                let fittedSize = TGScaleToFit(self.cropNode.bounds.size, contentSize)
                self.cropNode.zoomableContent = (contentSize, self.imageNode)
                self.cropNode.zoom(to: CGRect(x: (contentSize.width - fittedSize.width) / 2.0, y: (contentSize.height - fittedSize.height) / 2.0, width: fittedSize.width, height: fittedSize.height))
            }
            self.blurredNode.frame = self.imageNode.bounds
        }
        
        var additionalYOffset: CGFloat = 0.0
        if self.patternButtonNode.isSelected {
            additionalYOffset = -190.0
        }
        
        self.statusNode.frame = CGRect(x: layout.safeInsets.left + floorToScreenPixels((layout.size.width - layout.safeInsets.left - layout.safeInsets.right - progressDiameter) / 2.0), y: floorToScreenPixels((layout.size.height + additionalYOffset - progressDiameter) / 2.0), width: progressDiameter, height: progressDiameter)
        
        self.updateButtonsLayout(layout: layout, offset: CGPoint(x: offset, y: 0.0), transition: transition)
        
        self.validLayout = layout
    }
    
    override func visibilityUpdated(isVisible: Bool) {
        super.visibilityUpdated(isVisible: isVisible)
    }
}