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https://github.com/Swiftgram/Telegram-iOS.git
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Refactor HashtagSearchUI, StickerPackPreviewUI and related modules [skip ci]
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Peter
@@ -0,0 +1,243 @@
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import Foundation
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import UIKit
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import Display
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import AsyncDisplayKit
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import Postbox
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import TelegramCore
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import SwiftSignalKit
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import TelegramUIPreferences
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import AccountContext
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import ShareController
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import StickerResources
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import AlertUI
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public enum StickerPackPreviewControllerMode {
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case `default`
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case settings
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}
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public final class StickerPackPreviewController: ViewController {
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private var controllerNode: StickerPackPreviewControllerNode {
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return self.displayNode as! StickerPackPreviewControllerNode
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}
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private var animatedIn = false
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private var dismissed = false
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private let context: AccountContext
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private let mode: StickerPackPreviewControllerMode
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private weak var parentNavigationController: NavigationController?
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private let stickerPack: StickerPackReference
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private var stickerPackContentsValue: LoadedStickerPack?
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private let stickerPackDisposable = MetaDisposable()
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private let stickerPackContents = Promise<LoadedStickerPack>()
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private let stickerPackInstalledDisposable = MetaDisposable()
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private let stickerPackInstalled = Promise<Bool>()
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private let openMentionDisposable = MetaDisposable()
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private var presentationDataDisposable: Disposable?
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public var sendSticker: ((FileMediaReference, ASDisplayNode, CGRect) -> Bool)? {
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didSet {
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if self.isNodeLoaded {
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if let sendSticker = self.sendSticker {
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self.controllerNode.sendSticker = { [weak self] file, sourceNode, sourceRect in
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if sendSticker(file, sourceNode, sourceRect) {
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self?.dismiss()
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return true
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} else {
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return false
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}
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}
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} else {
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self.controllerNode.sendSticker = nil
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}
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}
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}
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}
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public init(context: AccountContext, stickerPack: StickerPackReference, mode: StickerPackPreviewControllerMode = .default, parentNavigationController: NavigationController?) {
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self.context = context
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self.mode = mode
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self.parentNavigationController = parentNavigationController
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self.stickerPack = stickerPack
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super.init(navigationBarPresentationData: nil)
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self.statusBar.statusBarStyle = .Ignore
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self.stickerPackContents.set(loadedStickerPack(postbox: context.account.postbox, network: context.account.network, reference: stickerPack, forceActualized: true))
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self.presentationDataDisposable = (context.sharedContext.presentationData
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|> deliverOnMainQueue).start(next: { [weak self] presentationData in
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if let strongSelf = self, strongSelf.isNodeLoaded {
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strongSelf.controllerNode.updatePresentationData(presentationData)
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}
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})
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}
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required public init(coder aDecoder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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deinit {
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self.stickerPackDisposable.dispose()
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self.stickerPackInstalledDisposable.dispose()
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self.openMentionDisposable.dispose()
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self.presentationDataDisposable?.dispose()
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}
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override public func loadDisplayNode() {
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var openShareImpl: (() -> Void)?
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if self.mode == .settings {
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openShareImpl = { [weak self] in
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guard let strongSelf = self else {
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return
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}
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if let stickerPackContentsValue = strongSelf.stickerPackContentsValue, case let .result(info, _, _) = stickerPackContentsValue, !info.shortName.isEmpty {
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strongSelf.present(ShareController(context: strongSelf.context, subject: .url("https://t.me/addstickers/\(info.shortName)"), externalShare: true), in: .window(.root))
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strongSelf.dismiss()
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}
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}
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}
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self.displayNode = StickerPackPreviewControllerNode(context: self.context, openShare: openShareImpl, openMention: { [weak self] mention in
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guard let strongSelf = self else {
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return
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}
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let account = strongSelf.context.account
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strongSelf.openMentionDisposable.set((resolvePeerByName(account: strongSelf.context.account, name: mention)
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|> mapToSignal { peerId -> Signal<Peer?, NoError> in
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if let peerId = peerId {
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return account.postbox.loadedPeerWithId(peerId)
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|> map(Optional.init)
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} else {
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return .single(nil)
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}
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}
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|> deliverOnMainQueue).start(next: { peer in
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guard let strongSelf = self else {
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return
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}
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if let peer = peer, let parentNavigationController = strongSelf.parentNavigationController {
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strongSelf.dismiss()
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strongSelf.context.sharedContext.navigateToChatController(NavigateToChatControllerParams(navigationController: parentNavigationController, context: strongSelf.context, chatLocation: .peer(peer.id), animated: true))
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}
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}))
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})
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self.controllerNode.dismiss = { [weak self] in
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self?.presentingViewController?.dismiss(animated: false, completion: nil)
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}
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self.controllerNode.cancel = { [weak self] in
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self?.dismiss()
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}
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self.controllerNode.presentInGlobalOverlay = { [weak self] controller, arguments in
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self?.presentInGlobalOverlay(controller, with: arguments)
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}
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if let sendSticker = self.sendSticker {
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self.controllerNode.sendSticker = { [weak self] file, sourceNode, sourceRect in
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if sendSticker(file, sourceNode, sourceRect) {
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self?.dismiss()
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return true
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} else {
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return false
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}
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}
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}
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let account = self.context.account
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self.displayNodeDidLoad()
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self.stickerPackDisposable.set((combineLatest(self.stickerPackContents.get(), self.context.sharedContext.accountManager.sharedData(keys: [ApplicationSpecificSharedDataKeys.stickerSettings]) |> take(1))
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|> mapToSignal { next, sharedData -> Signal<(LoadedStickerPack, StickerSettings), NoError> in
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var stickerSettings = StickerSettings.defaultSettings
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if let value = sharedData.entries[ApplicationSpecificSharedDataKeys.stickerSettings] as? StickerSettings {
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stickerSettings = value
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}
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switch next {
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case let .result(_, items, _):
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var preloadSignals: [Signal<Bool, NoError>] = []
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let topItems = items.prefix(16)
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for item in topItems {
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if let item = item as? StickerPackItem, item.file.isAnimatedSticker {
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let signal = Signal<Bool, NoError> { subscriber in
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let fetched = fetchedMediaResource(mediaBox: account.postbox.mediaBox, reference: FileMediaReference.standalone(media: item.file).resourceReference(item.file.resource)).start()
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let data = account.postbox.mediaBox.resourceData(item.file.resource).start()
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let dimensions = item.file.dimensions ?? CGSize(width: 512.0, height: 512.0)
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let fetchedRepresentation = chatMessageAnimatedStickerDatas(postbox: account.postbox, file: item.file, small: false, size: dimensions.aspectFitted(CGSize(width: 160.0, height: 160.0)), fetched: true, onlyFullSize: false, synchronousLoad: false).start(next: { next in
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let hasContent = next._0 != nil || next._1 != nil
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subscriber.putNext(hasContent)
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if hasContent {
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subscriber.putCompletion()
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}
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})
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return ActionDisposable {
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fetched.dispose()
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data.dispose()
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fetchedRepresentation.dispose()
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}
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}
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preloadSignals.append(signal)
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}
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}
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return combineLatest(preloadSignals)
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|> map { values -> Bool in
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return !values.contains(false)
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}
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|> distinctUntilChanged
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|> mapToSignal { loaded -> Signal<(LoadedStickerPack, StickerSettings), NoError> in
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if !loaded {
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return .single((.fetching, stickerSettings))
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} else {
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return .single((next, stickerSettings))
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}
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}
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default:
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return .single((next, stickerSettings))
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}
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}
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|> deliverOnMainQueue).start(next: { [weak self] next in
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if let strongSelf = self {
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if case .none = next.0 {
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let presentationData = strongSelf.context.sharedContext.currentPresentationData.with { $0 }
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strongSelf.present(textAlertController(context: strongSelf.context, title: nil, text: presentationData.strings.StickerPack_ErrorNotFound, actions: [TextAlertAction(type: .defaultAction, title: presentationData.strings.Common_OK, action: {})]), in: .window(.root))
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strongSelf.dismiss()
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} else {
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strongSelf.controllerNode.updateStickerPack(next.0, stickerSettings: next.1)
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strongSelf.stickerPackContentsValue = next.0
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}
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}
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}))
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self.ready.set(self.controllerNode.ready.get())
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}
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override public func viewDidAppear(_ animated: Bool) {
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super.viewDidAppear(animated)
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if !self.animatedIn {
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self.animatedIn = true
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self.controllerNode.animateIn()
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}
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}
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override public func dismiss(completion: (() -> Void)? = nil) {
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if !self.dismissed {
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self.dismissed = true
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} else {
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return
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}
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self.controllerNode.animateOut(completion: completion)
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}
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override public func containerLayoutUpdated(_ layout: ContainerViewLayout, transition: ContainedViewLayoutTransition) {
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super.containerLayoutUpdated(layout, transition: transition)
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self.controllerNode.containerLayoutUpdated(layout, navigationBarHeight: self.navigationHeight, transition: transition)
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}
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}
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