GLEGram 12.5 — Initial public release

Based on Swiftgram 12.5 (Telegram iOS 12.5).
All GLEGram features ported and organized in GLEGram/ folder.

Features: Ghost Mode, Saved Deleted Messages, Content Protection Bypass,
Font Replacement, Fake Profile, Chat Export, Plugin System, and more.

See CHANGELOG_12.5.md for full details.

submodules/TelegramUI/Components/AlertComponent/Sources/AlertActionComponent.swift

@@ -0,0 +1,228 @@
+import Foundation
+import UIKit
+import AsyncDisplayKit
+import Display
+import ComponentFlow
+import SwiftSignalKit
+import AccountContext
+import TelegramPresentationData
+import MultilineTextComponent
+import GlassBackgroundComponent
+import ActivityIndicatorComponent
+
+private let titleFont = Font.medium(17.0)
+private let boldTitleFont = Font.semibold(17.0)
+
+final class AlertActionComponent: Component {
+    typealias EnvironmentType = AlertComponentEnvironment
+    
+    static let actionHeight: CGFloat = 48.0
+    
+    struct Theme: Equatable {
+        enum Font {
+            case regular
+            case bold
+        }
+        
+        let background: UIColor
+        let foreground: UIColor
+        let secondary: UIColor
+        let font: Font
+    }
+    
+    let theme: Theme
+    let title: String
+    let isHighlighted: Bool
+    let isEnabled: Signal<Bool, NoError>
+    let progress: Signal<Bool, NoError>
+    
+    init(
+        theme: Theme,
+        title: String,
+        isHighlighted: Bool,
+        isEnabled: Signal<Bool, NoError>,
+        progress: Signal<Bool, NoError>
+    ) {
+        self.theme = theme
+        self.title = title
+        self.isHighlighted = isHighlighted
+        self.isEnabled = isEnabled
+        self.progress = progress
+    }
+    
+    static func ==(lhs: AlertActionComponent, rhs: AlertActionComponent) -> Bool {
+        if lhs.theme != rhs.theme {
+            return false
+        }
+        if lhs.title != rhs.title {
+            return false
+        }
+        if lhs.isHighlighted != rhs.isHighlighted {
+            return false
+        }
+        return true
+    }
+    
+    final class View: UIView {
+        private let backgroundView = UIView()
+        private let title = ComponentView<Empty>()
+        private var activity: ComponentView<Empty>?
+                
+        private var component: AlertActionComponent?
+        private weak var state: EmptyComponentState?
+        
+        private var isEnabledDisposable: Disposable?
+        private var isEnabled = true
+        
+        private var progressDisposable: Disposable?
+        private var hasProgress = false
+        
+        private var isUpdating = false
+                
+        override init(frame: CGRect) {
+            super.init(frame: frame)
+            
+            self.backgroundView.clipsToBounds = true
+            self.addSubview(self.backgroundView)
+        }
+        
+        required init?(coder: NSCoder) {
+            preconditionFailure()
+        }
+        
+        deinit {
+            self.isEnabledDisposable?.dispose()
+            self.progressDisposable?.dispose()
+        }
+        
+        func update(component: AlertActionComponent, availableSize: CGSize, state: EmptyComponentState, environment: Environment<AlertComponentEnvironment>, transition: ComponentTransition) -> CGSize {
+            self.isUpdating = true
+            defer {
+                self.isUpdating = false
+            }
+            if self.component == nil {
+                self.isEnabledDisposable = (component.isEnabled
+                |> deliverOnMainQueue).start(next: { [weak self] isEnabled in
+                    guard let self else {
+                        return
+                    }
+                    self.isEnabled = isEnabled
+                    if !self.isUpdating {
+                        self.state?.updated(transition: .easeInOut(duration: 0.25))
+                    }
+                })
+                
+                self.progressDisposable = (component.progress
+                |> deliverOnMainQueue).start(next: { [weak self] hasProgress in
+                    guard let self else {
+                        return
+                    }
+                    self.hasProgress = hasProgress
+                    if !self.isUpdating {
+                        self.state?.updated(transition: .easeInOut(duration: 0.25))
+                    }
+                })
+            }
+            self.component = component
+            self.state = state
+            
+            let attributedString = NSMutableAttributedString(string: component.title, font: component.theme.font == .bold ? boldTitleFont : titleFont, textColor: .white, paragraphAlignment: .center)
+            if let range = attributedString.string.range(of: "$") {
+                attributedString.addAttribute(.attachment, value: UIImage(bundleImageName: "Item List/PremiumIcon")!, range: NSRange(range, in: attributedString.string))
+                attributedString.addAttribute(.foregroundColor, value: UIColor.white, range: NSRange(range, in: attributedString.string))
+                attributedString.addAttribute(.baselineOffset, value: 2.0, range: NSRange(range, in: attributedString.string))
+            }
+                  
+            let titlePadding: CGFloat = 16.0
+            let titleSize = self.title.update(
+                transition: .immediate,
+                component: AnyComponent(MultilineTextComponent(
+                    text: .plain(attributedString),
+                    horizontalAlignment: .center,
+                    maximumNumberOfLines: 1,
+                    tintColor: component.theme.foreground
+                )),
+                environment: {},
+                containerSize: CGSize(width: availableSize.width - titlePadding * 2.0, height: availableSize.height)
+            )
+            if let titleView = self.title.view {
+                if titleView.superview == nil {
+                    self.addSubview(titleView)
+                }
+                titleView.bounds = CGRect(origin: .zero, size: titleSize)
+                transition.setAlpha(view: titleView, alpha: self.hasProgress ? 0.0 : 1.0)
+            }
+            
+            if self.hasProgress {
+                let activity: ComponentView<Empty>
+                if let current = self.activity {
+                    activity = current
+                } else {
+                    activity = ComponentView()
+                    self.activity = activity
+                }
+                let activitySize = CGSize(width: 18.0, height: 18.0)
+                let _ = activity.update(
+                    transition: transition,
+                    component: AnyComponent(ActivityIndicatorComponent(color: component.theme.secondary)),
+                    environment: {},
+                    containerSize: activitySize
+                )
+                if let activityView = activity.view {
+                    activityView.bounds = CGRect(origin: .zero, size: activitySize)
+                }
+            } else if let activity = self.activity {
+                self.activity = nil
+                if let activityView = activity.view {
+                    transition.setAlpha(view: activityView, alpha: 0.0, completion: { _ in
+                        activityView.removeFromSuperview()
+                    })
+                }
+            }
+            
+            let buttonAlpha: CGFloat
+            if self.isEnabled {
+                buttonAlpha = component.isHighlighted ? 0.35 : 1.0
+            } else {
+                buttonAlpha = 0.2
+            }
+            
+            transition.setBackgroundColor(view: self.backgroundView, color: component.theme.background)
+            transition.setAlpha(view: self.backgroundView, alpha: buttonAlpha)
+            self.backgroundView.layer.cornerRadius = availableSize.height * 0.5
+            
+            return CGSize(width: titleSize.width + titlePadding * 2.0, height: availableSize.height)
+        }
+        
+        func applySize(size: CGSize, transition: ComponentTransition) {
+            transition.setFrame(view: self.backgroundView, frame: CGRect(origin: .zero, size: size))
+            
+            if let titleView = self.title.view {
+                let titleSize = titleView.bounds.size
+                let titleFrame = CGRect(origin: CGPoint(x: floorToScreenPixels((size.width - titleSize.width) / 2.0), y: floorToScreenPixels((size.height - titleSize.height) / 2.0)), size: titleSize)
+                transition.setFrame(view: titleView, frame: titleFrame)
+            }
+            
+            if let activityView = self.activity?.view {
+                var activityTransition = transition
+                if activityView.superview == nil {
+                    self.addSubview(activityView)
+                    transition.animateAlpha(view: activityView, from: 0.0, to: 1.0)
+                    activityTransition = .immediate
+                }
+                let activitySize = activityView.bounds.size
+                let activityFrame = CGRect(origin: CGPoint(x: floorToScreenPixels((size.width - activitySize.width) / 2.0), y: floorToScreenPixels((size.height - activitySize.height) / 2.0)), size: activitySize)
+                activityTransition.setPosition(view: activityView, position: activityFrame.center)
+                activityView.transform = CGAffineTransformMakeScale(0.7, 0.7)
+            }
+        }
+    }
+    
+    func makeView() -> View {
+        return View(frame: CGRect())
+    }
+    
+    func update(view: View, availableSize: CGSize, state: EmptyComponentState, environment: Environment<AlertComponentEnvironment>, transition: ComponentTransition) -> CGSize {
+        return view.update(component: self, availableSize: availableSize, state: state, environment: environment, transition: transition)
+    }
+}

submodules/TelegramUI/Components/AlertComponent/Sources/AlertComponent.swift

@@ -0,0 +1,952 @@
+import Foundation
+import UIKit
+import AsyncDisplayKit
+import Display
+import ComponentFlow
+import SwiftSignalKit
+import AccountContext
+import TelegramPresentationData
+import MultilineTextComponent
+import ViewControllerComponent
+import ComponentDisplayAdapters
+import GlassBackgroundComponent
+
+public final class AlertComponentEnvironment: Equatable {
+    public let theme: PresentationTheme
+    public let strings: PresentationStrings
+    
+    public init(
+        theme: PresentationTheme,
+        strings: PresentationStrings
+    ) {
+        self.theme = theme
+        self.strings = strings
+    }
+    
+    public static func ==(lhs: AlertComponentEnvironment, rhs: AlertComponentEnvironment) -> Bool {
+        if lhs.theme !== rhs.theme {
+            return false
+        }
+        if lhs.strings !== rhs.strings {
+            return false
+        }
+        return true
+    }
+}
+
+private final class AlertScreenComponent: Component {
+    typealias EnvironmentType = ViewControllerComponentContainer.Environment
+    
+    let configuration: AlertScreen.Configuration
+    let content: Signal<[AnyComponentWithIdentity<AlertComponentEnvironment>], NoError>
+    let actions: Signal<[AlertScreen.Action], NoError>
+    let ready: Promise<Bool>
+    
+    init(
+        configuration: AlertScreen.Configuration,
+        content: Signal<[AnyComponentWithIdentity<AlertComponentEnvironment>], NoError>,
+        actions: Signal<[AlertScreen.Action], NoError>,
+        ready: Promise<Bool>
+    ) {
+        self.configuration = configuration
+        self.content = content
+        self.actions = actions
+        self.ready = ready
+    }
+    
+    static func ==(lhs: AlertScreenComponent, rhs: AlertScreenComponent) -> Bool {
+        return true
+    }
+    
+    enum KeyCommand {
+        case up
+        case down
+        case left
+        case right
+        case escape
+        case enter
+    }
+    
+    final class View: UIView, UIGestureRecognizerDelegate {
+        private let dimView = UIView()
+        private let containerView = GlassBackgroundContainerView()
+        private let backgroundView = GlassBackgroundView()
+        
+        private var disposable: Disposable?
+        private var content: [AnyComponentWithIdentity<AlertComponentEnvironment>]?
+        private var actions: [AlertScreen.Action]?
+        
+        private var contentItems: [AnyHashable: ComponentView<AlertComponentEnvironment>] = [:]
+        private var actionItems: [AnyHashable: ComponentView<AlertComponentEnvironment>] = [:]
+        
+        private var highlightedAction: AnyHashable?
+        private let hapticFeedback = HapticFeedback()
+                
+        private enum ActionLayout {
+            case horizontal
+            case vertical
+            case verticalReversed
+            
+            var isVertical: Bool {
+                switch self {
+                case .vertical, .verticalReversed:
+                    return true
+                default:
+                    return false
+                }
+            }
+        }
+        private var effectiveActionLayout: ActionLayout = .horizontal
+        
+        fileprivate var dismissedByTapOutside = false
+        
+        private var isUpdating: Bool = false
+        private var component: AlertScreenComponent?
+        private var environment: EnvironmentType?
+        private weak var state: EmptyComponentState?
+                
+        override init(frame: CGRect) {
+            super.init(frame: frame)
+            
+            self.dimView.alpha = 0.0
+            self.dimView.backgroundColor = UIColor(rgb: 0x000000, alpha: 0.2)
+            
+            self.addSubview(self.dimView)
+            self.addSubview(self.containerView)
+            self.containerView.contentView.addSubview(self.backgroundView)
+            
+            self.dimView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(self.dimTapped)))
+            
+            let tapRecognizer = ActionSelectionGestureRecognizer(target: self, action: #selector(self.actionTapped(_:)))
+            tapRecognizer.delegate = self
+            self.backgroundView.addGestureRecognizer(tapRecognizer)
+        }
+        
+        required init?(coder: NSCoder) {
+            preconditionFailure()
+        }
+        
+        deinit {
+            self.disposable?.dispose()
+        }
+        
+        override func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
+            if gestureRecognizer is ActionSelectionGestureRecognizer {
+                let location = gestureRecognizer.location(in: self.backgroundView)
+                for (_, action) in self.actionItems {
+                    if let actionView = action.view, actionView.frame.contains(location) {
+                        return true
+                    }
+                }
+                return false
+            } else {
+                return super.gestureRecognizerShouldBegin(gestureRecognizer)
+            }
+        }
+        
+        @objc private func actionTapped(_ gestureRecognizer: ActionSelectionGestureRecognizer) {
+            let location = gestureRecognizer.location(in: self.backgroundView)
+            switch gestureRecognizer.state {
+            case .began, .changed:
+                var highlightedActionId: AnyHashable?
+                for (actionId, action) in self.actionItems {
+                    if let actionView = action.view, actionView.frame.contains(location) {
+                        highlightedActionId = actionId
+                        break
+                    }
+                }
+                if self.highlightedAction != highlightedActionId {
+                    self.highlightedAction = highlightedActionId
+                    self.state?.updated(transition: .easeInOut(duration: 0.2))
+                    
+                    if case .changed = gestureRecognizer.state, highlightedActionId != nil {
+                        self.hapticFeedback.tap()
+                    }
+                }
+            case .ended:
+                if let _ = self.highlightedAction {
+                    self.performHighlightedAction()
+                    self.highlightedAction = nil
+                    self.state?.updated(transition: .easeInOut(duration: 0.2))
+                }
+            case .cancelled:
+                self.highlightedAction = nil
+                self.state?.updated(transition: .easeInOut(duration: 0.2))
+            default:
+                break
+            }
+        }
+        
+        @objc private func dimTapped() {
+            guard let component = self.component, component.configuration.dismissOnOutsideTap else {
+                return
+            }
+            self.dismissedByTapOutside = true
+            self.requestDismiss()
+        }
+        
+        func animateIn() {
+            let alphaTransition = ComponentTransition(animation: .curve(duration: 0.2, curve: .linear))
+            let scaleTransition = ComponentTransition(animation: .curve(duration: 0.4, curve: .spring))
+            alphaTransition.setAlpha(view: self.dimView, alpha: 1.0)
+            
+            scaleTransition.animateScale(view: self.backgroundView, from: 1.15, to: 1.0)
+            alphaTransition.animateAlpha(view: self.containerView, from: 0.0, to: 1.0)
+        }
+        
+        func animateOut(completion: @escaping () -> Void) {
+            let transition = ComponentTransition(animation: .curve(duration: 0.2, curve: .linear))
+            transition.setAlpha(view: self.dimView, alpha: 0.0, completion: { _ in
+                completion()
+            })
+            var initialAlpha: CGFloat = 1.0
+            if let presentationLayer = self.containerView.layer.presentation() {
+                initialAlpha = CGFloat(presentationLayer.opacity)
+            }
+            self.containerView.layer.animateAlpha(from: initialAlpha, to: 0.0, duration: 0.2, removeOnCompletion: false)
+        }
+        
+        override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
+            let result = super.hitTest(point, with: event)
+            if result === self.containerView.contentView {
+                return self.dimView
+            }
+            return result
+        }
+        
+        func requestDismiss() {
+            guard let controller = self.environment?.controller() as? AlertScreen else {
+                return
+            }
+            controller.dismiss(completion: nil)
+        }
+        
+        func handleKeyCommand(_ command: KeyCommand) {
+            switch command {
+            case .up:
+                guard self.effectiveActionLayout.isVertical else {
+                    return
+                }
+                self.updateActionHighlight(previous: false)
+            case .down:
+                guard self.effectiveActionLayout.isVertical else {
+                    return
+                }
+                self.updateActionHighlight(previous: true)
+            case .left:
+                guard !self.effectiveActionLayout.isVertical else {
+                    return
+                }
+                self.updateActionHighlight(previous: true)
+            case .right:
+                guard !self.effectiveActionLayout.isVertical else {
+                    return
+                }
+                self.updateActionHighlight(previous: false)
+            case .escape:
+                self.requestDismiss()
+            case .enter:
+                self.performHighlightedAction()
+            }
+        }
+        
+        func updateActionHighlight(previous: Bool) {
+            guard let actions = self.actions else {
+                return
+            }
+            guard let highlightedAction = self.highlightedAction else {
+                if let action = actions.first(where: { $0.type == .default }) {
+                    self.highlightedAction = action.id
+                } else if let action = actions.first(where: { $0.type == .defaultDestructive }) {
+                    self.highlightedAction = action.id
+                } else if case .verticalReversed = self.effectiveActionLayout, let action = actions.last {
+                    self.highlightedAction = action.id
+                } else if let action = actions.first {
+                    self.highlightedAction = action.id
+                }
+                self.state?.updated(transition: .easeInOut(duration: 0.2))
+                return
+            }
+            
+            let sequence = previous ? actions.reversed() : actions
+            var selectNext = false
+            var newHighlightedAction: AnyHashable?
+            
+            for action in sequence {
+                let id = AnyHashable(action.id)
+                if selectNext {
+                    newHighlightedAction = id
+                    break
+                } else if id == highlightedAction {
+                    selectNext = true
+                }
+            }
+            guard let newHighlightedAction else {
+                return
+            }
+            self.highlightedAction = newHighlightedAction
+            self.state?.updated(transition: .easeInOut(duration: 0.2))
+        }
+        
+        func performHighlightedAction() {
+            guard let actions = self.actions else {
+                return
+            }
+            guard let highlightedAction = self.highlightedAction else {
+                return
+            }
+            guard let action = actions.first(where: { AnyHashable($0.id) == highlightedAction }) else {
+                return
+            }
+            action.action()
+            if action.autoDismiss {
+                self.requestDismiss()
+            }
+        }
+                        
+        func update(component: AlertScreenComponent, availableSize: CGSize, state: EmptyComponentState, environment: Environment<ViewControllerComponentContainer.Environment>, transition: ComponentTransition) -> CGSize {
+            self.isUpdating = true
+            defer {
+                self.isUpdating = false
+            }
+            
+            let environment = environment[ViewControllerComponentContainer.Environment.self].value
+            self.environment = environment
+            self.state = state
+            
+            if self.component == nil {
+                self.disposable = (combineLatest(
+                    queue: Queue.mainQueue(),
+                    component.content,
+                    component.actions
+                ) |> deliverOnMainQueue).start(next: { [weak self] content, actions in
+                    guard let self else {
+                        return
+                    }
+                    self.content = content
+                    self.actions = actions
+                    
+                    if !self.isUpdating {
+                        self.state?.updated(transition: .easeInOut(duration: 0.25))
+                    }
+                })
+            }
+            
+            self.component = component
+            
+            var alertHeight: CGFloat = 0.0
+            let alertWidth: CGFloat = 300.0
+            let contentTopInset: CGFloat = 22.0
+            let contentBottomInset: CGFloat = 21.0
+            let contentSideInset: CGFloat = 30.0
+            let contentSpacing: CGFloat = 8.0
+            let actionSideInset: CGFloat = 16.0
+            let actionSpacing: CGFloat = 8.0
+            let fullWidthActionSize = CGSize(width: alertWidth - actionSideInset * 2.0, height: AlertActionComponent.actionHeight)
+            let halfWidthActionSize = CGSize(width: (alertWidth - actionSideInset * 2.0 - actionSpacing) / 2.0, height: AlertActionComponent.actionHeight)
+    
+            let alertEnvironment = AlertComponentEnvironment(theme: environment.theme, strings: environment.strings)
+            
+            var contentOriginY: CGFloat = 0.0
+            var validContentIds: Set<AnyHashable> = Set()
+            if let content = self.content {
+                for content in content {
+                    if contentOriginY.isZero {
+                        contentOriginY += contentTopInset
+                    } else {
+                        contentOriginY += contentSpacing
+                    }
+                    validContentIds.insert(content.id)
+                    
+                    let item: ComponentView<AlertComponentEnvironment>
+                    var itemTransition = transition
+                    if let current = self.contentItems[content.id] {
+                        item = current
+                    } else {
+                        item = ComponentView()
+                        if !transition.animation.isImmediate {
+                            itemTransition = .immediate
+                        }
+                        self.contentItems[content.id] = item
+                    }
+                    
+                    let itemSize = item.update(
+                        transition: itemTransition,
+                        component: content.component,
+                        environment: { alertEnvironment },
+                        containerSize: CGSize(width: alertWidth - contentSideInset * 2.0, height: availableSize.height)
+                    )
+                    let itemFrame = CGRect(origin: CGPoint(x: contentSideInset, y: contentOriginY), size: itemSize)
+                    if let itemView = item.view {
+                        if itemView.superview == nil {
+                            self.backgroundView.contentView.addSubview(itemView)
+                            item.parentState = state
+                        }
+                        transition.setFrame(view: itemView, frame: itemFrame)
+                    }
+                    contentOriginY += itemSize.height
+                }
+            }
+            
+            if !contentOriginY.isZero {
+                alertHeight += contentOriginY
+                alertHeight += contentBottomInset
+            }
+            
+            if let actions = self.actions {
+                let genericActionTheme = AlertActionComponent.Theme(
+                    background: environment.theme.actionSheet.primaryTextColor.withMultipliedAlpha(0.1),
+                    foreground: environment.theme.actionSheet.primaryTextColor,
+                    secondary: environment.theme.actionSheet.secondaryTextColor,
+                    font: .regular
+                )
+                let defaultActionTheme = AlertActionComponent.Theme(
+                    background: environment.theme.actionSheet.controlAccentColor,
+                    foreground: environment.theme.list.itemCheckColors.foregroundColor,
+                    secondary: environment.theme.list.itemCheckColors.foregroundColor.withMultipliedAlpha(0.85),
+                    font: .bold
+                )
+                let destructiveActionTheme = AlertActionComponent.Theme(
+                    background: environment.theme.list.itemDestructiveColor,
+                    foreground: .white,
+                    secondary: .white.withMultipliedAlpha(0.6),
+                    font: .regular
+                )
+                let defaultDestructiveActionTheme = AlertActionComponent.Theme(
+                    background: environment.theme.list.itemDestructiveColor,
+                    foreground: .white,
+                    secondary: .white.withMultipliedAlpha(0.6),
+                    font: .bold
+                )
+                
+                var effectiveActionLayout: ActionLayout = .horizontal
+                if case .vertical = component.configuration.actionAlignment {
+                    effectiveActionLayout = .vertical
+                } else if actions.count == 1 {
+                    effectiveActionLayout = .vertical
+                }
+                var actionTransitions: [AnyHashable: ComponentTransition] = [:]
+                var validActionIds: Set<AnyHashable> = Set()
+                for action in actions {
+                    validActionIds.insert(action.id)
+                    
+                    let item: ComponentView<AlertComponentEnvironment>
+                    var itemTransition = transition
+                    if let current = self.actionItems[action.id] {
+                        item = current
+                    } else {
+                        item = ComponentView()
+                        if !transition.animation.isImmediate {
+                            itemTransition = .immediate
+                        }
+                        self.actionItems[action.id] = item
+                    }
+                    actionTransitions[action.id] = itemTransition
+                    
+                    let actionTheme: AlertActionComponent.Theme
+                    switch action.type {
+                    case .generic:
+                        actionTheme = genericActionTheme
+                    case .default:
+                        actionTheme = defaultActionTheme
+                    case .destructive:
+                        actionTheme = destructiveActionTheme
+                    case .defaultDestructive:
+                        actionTheme = defaultDestructiveActionTheme
+                    }
+                    let itemSize = item.update(
+                        transition: itemTransition,
+                        component: AnyComponent(AlertActionComponent(
+                            theme: actionTheme,
+                            title: action.title,
+                            isHighlighted: AnyHashable(action.id) == self.highlightedAction,
+                            isEnabled: action.isEnabled,
+                            progress: action.progress
+                        )),
+                        environment: { alertEnvironment },
+                        containerSize: fullWidthActionSize
+                    )
+                    if let itemView = item.view {
+                        if itemView.superview == nil {
+                            self.backgroundView.contentView.addSubview(itemView)
+                        }
+                    }
+                    
+                    if case .horizontal = effectiveActionLayout, itemSize.width > halfWidthActionSize.width {
+                        effectiveActionLayout = .verticalReversed
+                    }
+                }
+                self.effectiveActionLayout = effectiveActionLayout
+                
+                if !actions.isEmpty {
+                    let actionsHeight: CGFloat
+                    if self.effectiveActionLayout.isVertical {
+                        actionsHeight = fullWidthActionSize.height * CGFloat(actions.count) + actionSpacing * CGFloat(actions.count - 1)
+                    } else {
+                        actionsHeight = fullWidthActionSize.height
+                    }
+                    alertHeight += actionsHeight
+                    alertHeight += actionSideInset
+                }
+                
+                var actionOriginX: CGFloat = actionSideInset
+                var actionOriginY: CGFloat
+                switch self.effectiveActionLayout {
+                case .horizontal, .verticalReversed:
+                    actionOriginY = alertHeight - actionSideInset - fullWidthActionSize.height
+                case .vertical:
+                    actionOriginY = alertHeight - actionSideInset - fullWidthActionSize.height * CGFloat( actions.count) - actionSpacing * CGFloat(actions.count - 1)
+                }
+                for action in actions {
+                    guard let item = self.actionItems[action.id], let itemView = item.view as? AlertActionComponent.View else {
+                        continue
+                    }
+                    let itemTransition = actionTransitions[action.id] ?? transition
+                    let itemFrame: CGRect
+                    switch self.effectiveActionLayout {
+                    case .horizontal:
+                        itemFrame = CGRect(origin: CGPoint(x: actionOriginX, y: actionOriginY), size: halfWidthActionSize)
+                        actionOriginX += halfWidthActionSize.width + actionSpacing
+                    case .vertical:
+                        itemFrame = CGRect(origin: CGPoint(x: actionOriginX, y: actionOriginY), size: fullWidthActionSize)
+                        actionOriginY += fullWidthActionSize.height + actionSpacing
+                    case .verticalReversed:
+                        itemFrame = CGRect(origin: CGPoint(x: actionOriginX, y: actionOriginY), size: fullWidthActionSize)
+                        actionOriginY -= fullWidthActionSize.height + actionSpacing
+                    }
+                    itemView.applySize(size: itemFrame.size, transition: itemTransition)
+                    itemTransition.setFrame(view: itemView, frame: itemFrame)
+                }
+                
+                var removeActionIds: [AnyHashable] = []
+                for (id, item) in self.actionItems {
+                    if !validActionIds.contains(id) {
+                        removeActionIds.append(id)
+                        if let itemView = item.view {
+                            if !transition.animation.isImmediate {
+                                itemView.layer.animateScale(from: 1.0, to: 0.01, duration: 0.25, removeOnCompletion: false)
+                                itemView.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.25, removeOnCompletion: false, completion: { _ in
+                                    itemView.removeFromSuperview()
+                                })
+                            } else {
+                                itemView.removeFromSuperview()
+                            }
+                        }
+                    }
+                }
+                for id in removeActionIds {
+                    self.actionItems.removeValue(forKey: id)
+                }
+            }
+            
+            let alertSize = CGSize(width: alertWidth, height: alertHeight)
+            let bounds = CGRect(origin: .zero, size: availableSize)
+            
+            transition.setFrame(view: self.dimView, frame: bounds)
+            transition.setFrame(view: self.containerView, frame: bounds)
+            self.containerView.update(size: availableSize, isDark: environment.theme.overallDarkAppearance, transition: transition)
+            
+            var availableHeight = availableSize.height
+            availableHeight -= environment.statusBarHeight
+            if component.configuration.allowInputInset, environment.inputHeight > 0.0 {
+                availableHeight -= environment.inputHeight
+            }
+                        
+            transition.setFrame(view: self.backgroundView, frame: CGRect(origin: CGPoint(x: floorToScreenPixels((availableSize.width - alertSize.width) / 2.0), y: environment.statusBarHeight +  floorToScreenPixels((availableHeight - alertSize.height) / 2.0)), size: alertSize))
+            self.backgroundView.update(size: alertSize, cornerRadius: 35.0, isDark: environment.theme.overallDarkAppearance, tintColor: .init(kind: .panel), isInteractive: true, transition: transition)
+            
+            return availableSize
+        }
+    }
+    
+    func makeView() -> View {
+        return View(frame: CGRect())
+    }
+    
+    func update(view: View, availableSize: CGSize, state: EmptyComponentState, environment: Environment<ViewControllerComponentContainer.Environment>, transition: ComponentTransition) -> CGSize {
+        return view.update(component: self, availableSize: availableSize, state: state, environment: environment, transition: transition)
+    }
+}
+
+open class AlertScreen: ViewControllerComponentContainer, KeyShortcutResponder {
+    public enum ActionAligmnent: Equatable {
+        case `default`
+        case vertical
+    }
+    
+    public struct Configuration: Equatable {
+        let actionAlignment: ActionAligmnent
+        let dismissOnOutsideTap: Bool
+        let allowInputInset: Bool
+        
+        public init(
+            actionAlignment: ActionAligmnent = .default,
+            dismissOnOutsideTap: Bool = true,
+            allowInputInset: Bool = false
+        ) {
+            self.actionAlignment = actionAlignment
+            self.dismissOnOutsideTap = dismissOnOutsideTap
+            self.allowInputInset = allowInputInset
+        }
+    }
+    
+    public struct Action: Equatable {
+        public enum ActionType: Equatable {
+            case generic
+            case `default`
+            case destructive
+            case defaultDestructive
+        }
+        public let title: String
+        public let type: ActionType
+        public let action: () -> Void
+        public let autoDismiss: Bool
+        public let isEnabled: Signal<Bool, NoError>
+        public let progress: Signal<Bool, NoError>
+        
+        public init(
+            id: AnyHashable? = nil,
+            title: String,
+            type: ActionType = .generic,
+            action: @escaping () -> Void = {},
+            autoDismiss: Bool = true,
+            isEnabled: Signal<Bool, NoError> = .single(true),
+            progress: Signal<Bool, NoError> = .single(false)
+        ) {
+            self.type = type
+            self.title = title
+            self.action = action
+            self.autoDismiss = autoDismiss
+            self.isEnabled = isEnabled
+            self.progress = progress
+            
+            if let id {
+                self.id = id
+            } else {
+                self.id = title
+            }
+        }
+        
+        public static func ==(lhs: Action, rhs: Action) -> Bool {
+            if lhs.title != rhs.title {
+                return false
+            }
+            if lhs.type != rhs.type {
+                return false
+            }
+            if lhs.autoDismiss != rhs.autoDismiss {
+                return false
+            }
+            return true
+        }
+        
+        fileprivate let id: AnyHashable
+    }
+    
+    private var processedDidAppear: Bool = false
+    private var processedDidDisappear: Bool = false
+    
+    private let readyValue = Promise<Bool>(true)
+    override public var ready: Promise<Bool> {
+        return self.readyValue
+    }
+    
+    public var dismissed: ((Bool) -> Void)?
+    
+    public init(
+        configuration: Configuration = Configuration(),
+        contentSignal: Signal<[AnyComponentWithIdentity<AlertComponentEnvironment>], NoError>,
+        actionsSignal: Signal<[Action], NoError>,
+        updatedPresentationData: (initial: PresentationData, signal: Signal<PresentationData, NoError>)
+    ) {
+        let componentReady = Promise<Bool>()
+        
+        super.init(
+            component: AlertScreenComponent(
+                configuration: configuration,
+                content: contentSignal,
+                actions: actionsSignal,
+                ready: componentReady
+            ),
+            navigationBarAppearance: .none,
+            statusBarStyle: .ignore,
+            presentationMode: .default,
+            updatedPresentationData: updatedPresentationData
+        )
+        self.navigationPresentation = .flatModal
+        
+        //self.readyValue.set(componentReady.get() |> timeout(1.0, queue: .mainQueue(), alternate: .single(true)))
+    }
+    
+    public convenience init(
+        configuration: Configuration = Configuration(),
+        content: [AnyComponentWithIdentity<AlertComponentEnvironment>],
+        actions: [Action],
+        updatedPresentationData: (initial: PresentationData, signal: Signal<PresentationData, NoError>)
+    ) {
+        self.init(
+            configuration: configuration,
+            contentSignal: .single(content),
+            actionsSignal: .single(actions),
+            updatedPresentationData: updatedPresentationData
+        )
+    }
+    
+    public convenience init(
+        context: AccountContext,
+        configuration: Configuration = Configuration(),
+        content: [AnyComponentWithIdentity<AlertComponentEnvironment>],
+        actions: [Action]
+    ) {
+        self.init(
+            sharedContext: context.sharedContext,
+            configuration: configuration,
+            content: content,
+            actions: actions,
+        )
+    }
+    
+    public convenience init(
+        sharedContext: SharedAccountContext,
+        configuration: Configuration = Configuration(),
+        content: [AnyComponentWithIdentity<AlertComponentEnvironment>],
+        actions: [Action]
+    ) {
+        let presentationData = sharedContext.currentPresentationData.with { $0 }
+        let updatedPresentationDataSignal = sharedContext.presentationData
+        self.init(
+            configuration: configuration,
+            content: content,
+            actions: actions,
+            updatedPresentationData: (initial: presentationData, signal: updatedPresentationDataSignal)
+        )
+    }
+    
+    public convenience init(
+        configuration: Configuration = Configuration(),
+        title: String? = nil,
+        text: String,
+        textAction: @escaping ([NSAttributedString.Key: Any]) -> Void = { _ in },
+        actions: [Action],
+        updatedPresentationData: (initial: PresentationData, signal: Signal<PresentationData, NoError>)
+    ) {
+        var content: [AnyComponentWithIdentity<AlertComponentEnvironment>] = []
+        if let title {
+            content.append(AnyComponentWithIdentity(
+                id: "title",
+                component: AnyComponent(
+                    AlertTitleComponent(title: title)
+                )
+            ))
+        }
+        if !text.isEmpty {
+            content.append(AnyComponentWithIdentity(
+                id: "text",
+                component: AnyComponent(
+                    AlertTextComponent(content: .plain(text), action: textAction)
+                )
+            ))
+        }
+        
+        if content.isEmpty {
+            content.append(AnyComponentWithIdentity(
+                id: "text",
+                component: AnyComponent(
+                    AlertTextComponent(content: .plain(" "), action: textAction)
+                )
+            ))
+        }
+        
+        self.init(
+            configuration: configuration,
+            content: content,
+            actions: actions,
+            updatedPresentationData: updatedPresentationData
+        )
+    }
+    
+    public convenience init(
+        context: AccountContext,
+        configuration: Configuration = Configuration(),
+        title: String? = nil,
+        text: String,
+        actions: [Action]
+    ) {
+        let presentationData = context.sharedContext.currentPresentationData.with { $0 }
+        let updatedPresentationDataSignal = context.sharedContext.presentationData
+        self.init(
+            configuration: configuration,
+            title: title,
+            text: text,
+            actions: actions,
+            updatedPresentationData: (initial: presentationData, signal: updatedPresentationDataSignal)
+        )
+    }
+    
+    required public init(coder aDecoder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+    
+    deinit {
+    }
+    
+    override public func viewDidAppear(_ animated: Bool) {
+        super.viewDidAppear(animated)
+        
+        if !self.processedDidAppear {
+            self.processedDidAppear = true
+            if let componentView = self.node.hostView.componentView as? AlertScreenComponent.View {
+                componentView.animateIn()
+            }
+        }
+    }
+    
+    private func superDismiss() {
+        super.dismiss()
+    }
+    
+    override open func dismiss(completion: (() -> Void)? = nil) {
+        if !self.processedDidDisappear {
+            self.processedDidDisappear = true
+            
+            self.view.window?.endEditing(true)
+            
+            if let componentView = self.node.hostView.componentView as? AlertScreenComponent.View {
+                let dismissedByTapOutside = componentView.dismissedByTapOutside
+                componentView.animateOut(completion: { [weak self] in
+                    if let self {
+                        self.dismissed?(dismissedByTapOutside)
+                        self.superDismiss()
+                    }
+                    completion?()
+                })
+            } else {
+                super.dismiss(completion: completion)
+            }
+        }
+    }
+    
+    public var keyShortcuts: [KeyShortcut] {
+        return [
+            KeyShortcut(
+                input: UIKeyCommand.inputEscape,
+                modifiers: [],
+                action: { [weak self] in
+                    if let componentView = self?.node.hostView.componentView as? AlertScreenComponent.View {
+                        componentView.handleKeyCommand(.escape)
+                    }
+                }
+            ),
+            KeyShortcut(
+                input: "W",
+                modifiers: [.command],
+                action: { [weak self] in
+                    if let componentView = self?.node.hostView.componentView as? AlertScreenComponent.View {
+                        componentView.handleKeyCommand(.escape)
+                    }
+                }
+            ),
+            KeyShortcut(
+                input: "\r",
+                modifiers: [],
+                action: { [weak self] in
+                    if let componentView = self?.node.hostView.componentView as? AlertScreenComponent.View {
+                        componentView.handleKeyCommand(.enter)
+                    }
+                }
+            ),
+            KeyShortcut(
+                input: UIKeyCommand.inputUpArrow,
+                modifiers: [],
+                action: { [weak self] in
+                    if let componentView = self?.node.hostView.componentView as? AlertScreenComponent.View {
+                        componentView.handleKeyCommand(.up)
+                    }
+                }
+            ),
+            KeyShortcut(
+                input: UIKeyCommand.inputDownArrow,
+                modifiers: [],
+                action: { [weak self] in
+                    if let componentView = self?.node.hostView.componentView as? AlertScreenComponent.View {
+                        componentView.handleKeyCommand(.down)
+                    }
+                }
+            ),
+            KeyShortcut(
+                input: UIKeyCommand.inputLeftArrow,
+                modifiers: [],
+                action: { [weak self] in
+                    if let componentView = self?.node.hostView.componentView as? AlertScreenComponent.View {
+                        componentView.handleKeyCommand(.left)
+                    }
+                }
+            ),
+            KeyShortcut(
+                input: UIKeyCommand.inputRightArrow,
+                modifiers: [],
+                action: { [weak self] in
+                    if let componentView = self?.node.hostView.componentView as? AlertScreenComponent.View {
+                        componentView.handleKeyCommand(.right)
+                    }
+                }
+            )
+        ]
+    }
+}
+
+public final class ActionSelectionGestureRecognizer: UIGestureRecognizer {
+    private var initialLocation: CGPoint?
+    private var currentLocation: CGPoint?
+    
+    public override init(target: Any?, action: Selector?) {
+        super.init(target: target, action: action)
+        
+        self.delaysTouchesBegan = false
+        self.delaysTouchesEnded = false
+    }
+    
+    public override func reset() {
+        super.reset()
+        
+        self.initialLocation = nil
+    }
+    
+    public override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent) {
+        super.touchesBegan(touches, with: event)
+        
+        if self.initialLocation == nil {
+            self.initialLocation = touches.first?.location(in: self.view)
+        }
+        self.currentLocation = self.initialLocation
+        
+        self.state = .began
+    }
+    
+    public override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent) {
+        super.touchesEnded(touches, with: event)
+        
+        self.state = .ended
+    }
+    
+    public override func touchesCancelled(_ touches: Set<UITouch>, with event: UIEvent) {
+        super.touchesCancelled(touches, with: event)
+        
+        self.state = .cancelled
+    }
+    
+    public override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent) {
+        super.touchesMoved(touches, with: event)
+        
+        self.currentLocation = touches.first?.location(in: self.view)
+        
+        self.state = .changed
+    }
+    
+    public func translation(in: UIView?) -> CGPoint {
+        if let initialLocation = self.initialLocation, let currentLocation = self.currentLocation {
+            return CGPoint(x: currentLocation.x - initialLocation.x, y: currentLocation.y - initialLocation.y)
+        }
+        return CGPoint()
+    }
+}

submodules/TelegramUI/Components/AlertComponent/Sources/AlertContent.swift

@@ -0,0 +1,369 @@
+import Foundation
+import UIKit
+import AsyncDisplayKit
+import Display
+import ComponentFlow
+import TelegramCore
+import TelegramPresentationData
+import MultilineTextComponent
+import MultilineTextWithEntitiesComponent
+import Markdown
+import TextFormat
+import AccountContext
+
+private let titleFont = Font.bold(17.0)
+private let defaultTextFont = Font.regular(15.0)
+private let defaultBoldTextFont = Font.semibold(15.0)
+private let defaultItalicTextFont = Font.italic(15.0)
+private let defaultBoldItalicTextFont = Font.with(size: 15.0, weight: .semibold, traits: [.italic])
+private let defaultFixedTextFont = Font.monospace(15.0)
+private let smallTextFont = Font.regular(14.0)
+private let smallBoldTextFont = Font.semibold(14.0)
+private let smallItalicTextFont = Font.italic(14.0)
+private let smallBoldItalicTextFont = Font.with(size: 14.0, weight: .semibold, traits: [.italic])
+private let smallFixedTextFont = Font.monospace(14.0)
+private let backgroundInset: CGFloat = 8.0
+
+public final class AlertTitleComponent: Component {
+    public typealias EnvironmentType = AlertComponentEnvironment
+    
+    public enum Alignment {
+        case `default`
+        case center
+    }
+    
+    let title: String
+    let alignment: Alignment
+    
+    public init(
+        title: String,
+        alignment: Alignment = .default
+    ) {
+        self.title = title
+        self.alignment = alignment
+    }
+    
+    public static func ==(lhs: AlertTitleComponent, rhs: AlertTitleComponent) -> Bool {
+        if lhs.title != rhs.title {
+            return false
+        }
+        if lhs.alignment != rhs.alignment {
+            return false
+        }
+        return true
+    }
+    
+    public final class View: UIView {
+        private let title = ComponentView<Empty>()
+        
+        private var component: AlertTitleComponent?
+        private weak var state: EmptyComponentState?
+        
+        func update(component: AlertTitleComponent, availableSize: CGSize, state: EmptyComponentState, environment: Environment<AlertComponentEnvironment>, transition: ComponentTransition) -> CGSize {
+            self.component = component
+            self.state = state
+            
+            let environment = environment[AlertComponentEnvironment.self]
+            
+            let inset: CGFloat = -6.0
+            let titleConstrainedSize = CGSize(width: availableSize.width - inset * 2.0, height: availableSize.height)
+            let titleSize = self.title.update(
+                transition: transition,
+                component: AnyComponent(MultilineTextComponent(
+                    text: .plain(NSAttributedString(
+                        string: component.title,
+                        font: titleFont,
+                        textColor: environment.theme.actionSheet.primaryTextColor
+                    )),
+                    horizontalAlignment: component.alignment == .center ? .center : .natural,
+                    maximumNumberOfLines: 0
+                )),
+                environment: {},
+                containerSize: titleConstrainedSize
+            )
+            
+            let titleOriginX: CGFloat
+            switch component.alignment {
+            case .default:
+                titleOriginX = inset
+            case .center:
+                titleOriginX = floorToScreenPixels((availableSize.width - titleSize.width) / 2.0)
+            }
+            let titleFrame = CGRect(origin: CGPoint(x: titleOriginX, y: 0.0), size: titleSize)
+            if let titleView = self.title.view {
+                if titleView.superview == nil {
+                    self.addSubview(titleView)
+                }
+                transition.setFrame(view: titleView, frame: titleFrame)
+            }
+            return CGSize(width: availableSize.width, height: titleSize.height)
+        }
+    }
+    
+    public func makeView() -> View {
+        return View(frame: CGRect())
+    }
+    
+    public func update(view: View, availableSize: CGSize, state: EmptyComponentState, environment: Environment<AlertComponentEnvironment>, transition: ComponentTransition) -> CGSize {
+        return view.update(component: self, availableSize: availableSize, state: state, environment: environment, transition: transition)
+    }
+}
+
+public final class AlertTextComponent: Component {
+    public typealias EnvironmentType = AlertComponentEnvironment
+    
+    public enum Content: Equatable {
+        case plain(String)
+        case attributed(NSAttributedString)
+        case textWithEntities(AccountContext, String, [MessageTextEntity])
+        
+        public static func ==(lhs: Content, rhs: Content) -> Bool {
+            switch lhs {
+            case let .plain(text):
+                if case .plain(text) = rhs {
+                    return true
+                } else {
+                    return false
+                }
+            case let .attributed(text):
+                if case .attributed(text) = rhs {
+                    return true
+                } else {
+                    return false
+                }
+            case let .textWithEntities(_, lhsText, lhsEntities):
+                if case let .textWithEntities(_, rhsText, rhsEntities) = rhs {
+                    return lhsText == rhsText && lhsEntities == rhsEntities
+                } else {
+                    return false
+                }
+            }
+        }
+    }
+    
+    public enum Alignment: Equatable {
+        case `default`
+        case center
+    }
+    
+    public enum Color: Equatable {
+        case primary
+        case secondary
+        case destructive
+    }
+    
+    public enum TextStyle: Equatable {
+        case `default`
+        case small
+        case bold
+    }
+    
+    public enum Style: Equatable {
+        case plain(TextStyle)
+        case background(TextStyle)
+    }
+    
+    let content: Content
+    let alignment: Alignment
+    let color: Color
+    let style: Style
+    let insets: UIEdgeInsets
+    let action: ([NSAttributedString.Key: Any]) -> Void
+    
+    public init(
+        content: Content,
+        alignment: Alignment = .default,
+        color: Color = .primary,
+        style: Style = .plain(.default),
+        insets: UIEdgeInsets = .zero,
+        action: @escaping ([NSAttributedString.Key: Any]) -> Void = { _ in }
+    ) {
+        self.content = content
+        self.alignment = alignment
+        self.color = color
+        self.style = style
+        self.insets = insets
+        self.action = action
+    }
+    
+    public static func ==(lhs: AlertTextComponent, rhs: AlertTextComponent) -> Bool {
+        if lhs.content != rhs.content {
+            return false
+        }
+        if lhs.alignment != rhs.alignment {
+            return false
+        }
+        if lhs.color != rhs.color {
+            return false
+        }
+        if lhs.style != rhs.style {
+            return false
+        }
+        if lhs.insets != rhs.insets {
+            return false
+        }
+        return true
+    }
+    
+    public final class View: UIView {
+        private let background = ComponentView<Empty>()
+        private let text = ComponentView<Empty>()
+        
+        private var component: AlertTextComponent?
+        private weak var state: EmptyComponentState?
+        
+        func update(component: AlertTextComponent, availableSize: CGSize, state: EmptyComponentState, environment: Environment<AlertComponentEnvironment>, transition: ComponentTransition) -> CGSize {
+            self.component = component
+            self.state = state
+            
+            let environment = environment[AlertComponentEnvironment.self]
+            
+            let textColor: UIColor
+            switch component.color {
+            case .primary:
+                textColor = environment.theme.actionSheet.primaryTextColor
+            case .secondary:
+                textColor = environment.theme.actionSheet.primaryTextColor.withMultipliedAlpha(0.35)
+            case .destructive:
+                textColor = environment.theme.actionSheet.destructiveActionTextColor
+            }
+            let linkColor = environment.theme.actionSheet.controlAccentColor
+            
+            let textFont: UIFont
+            let boldTextFont: UIFont
+            let italicTextFont: UIFont
+            let fixedTextFont: UIFont
+            switch component.style {
+            case let .plain(textStyle), let .background(textStyle):
+                switch textStyle {
+                case .default:
+                    textFont = defaultTextFont
+                    boldTextFont = defaultBoldTextFont
+                    italicTextFont = defaultItalicTextFont
+                    fixedTextFont = defaultFixedTextFont
+                case .small:
+                    textFont = smallTextFont
+                    boldTextFont = smallBoldTextFont
+                    italicTextFont = smallItalicTextFont
+                    fixedTextFont = smallFixedTextFont
+                case .bold:
+                    textFont = defaultBoldTextFont
+                    boldTextFont = defaultBoldTextFont
+                    italicTextFont = defaultBoldItalicTextFont
+                    fixedTextFont = defaultFixedTextFont
+                }
+            }
+            
+            var finalText: NSAttributedString
+            var context: AccountContext?
+            switch component.content {
+            case let .plain(text):
+                let markdownAttributes = MarkdownAttributes(
+                    body: MarkdownAttributeSet(font: textFont, textColor: textColor),
+                    bold: MarkdownAttributeSet(font: boldTextFont, textColor: textColor),
+                    link: MarkdownAttributeSet(font: textFont, textColor: linkColor),
+                    linkAttribute: { contents in
+                        return (TelegramTextAttributes.URL, contents)
+                    }
+                )
+                finalText = parseMarkdownIntoAttributedString(text, attributes: markdownAttributes)
+            case let .attributed(attributedText):
+                finalText = attributedText
+            case let .textWithEntities(accountContext, text, entities):
+                context = accountContext
+                finalText = stringWithAppliedEntities(text, entities: entities, baseColor: textColor, linkColor: linkColor, baseFont: textFont, linkFont: textFont, boldFont: boldTextFont, italicFont: italicTextFont, boldItalicFont: italicTextFont, fixedFont: fixedTextFont, blockQuoteFont: textFont, message: nil)
+            }
+            
+            var hasCenterAlignment = component.alignment == .center
+            switch component.style {
+            case .background:
+                hasCenterAlignment = true
+            default:
+                break
+            }
+            
+            let inset: CGFloat = -6.0
+            let textConstrainedSize = CGSize(width: availableSize.width - inset * 2.0, height: availableSize.height)
+                        
+            let textSize = self.text.update(
+                transition: transition,
+                component: AnyComponent(
+                    MultilineTextWithEntitiesComponent(
+                        context: context,
+                        animationCache: context?.animationCache,
+                        animationRenderer: context?.animationRenderer,
+                        placeholderColor: textColor.withMultipliedAlpha(0.1),
+                        text: .plain(finalText),
+                        horizontalAlignment: hasCenterAlignment ? .center : .natural,
+                        maximumNumberOfLines: 0,
+                        lineSpacing: 0.2,
+                        spoilerColor: textColor,
+                        highlightColor: linkColor.withAlphaComponent(0.2),
+                        manualVisibilityControl: true,
+                        resetAnimationsOnVisibilityChange: true,
+                        highlightAction: { attributes in
+                            if let _ = attributes[NSAttributedString.Key(rawValue: TelegramTextAttributes.URL)] {
+                                return NSAttributedString.Key(rawValue: TelegramTextAttributes.URL)
+                            } else {
+                                return nil
+                            }
+                        },
+                        tapAction: { attributes, _ in
+                            component.action(attributes)
+                        }
+                    )
+                ),
+                environment: {},
+                containerSize: textConstrainedSize
+            )
+            
+            var textOffset = CGPoint(x: inset, y: 0.0)
+            if hasCenterAlignment {
+                textOffset.x = floorToScreenPixels((availableSize.width - textSize.width) / 2.0)
+            }
+            var size = CGSize(width: availableSize.width, height: textSize.height)
+            if case .background = component.style {
+                let backgroundSize = CGSize(width: availableSize.width + 20.0, height: textSize.height + backgroundInset * 2.0)
+                size = backgroundSize
+                textOffset = CGPoint(x: textOffset.x, y: backgroundInset)
+                
+                let _ = self.background.update(
+                    transition: transition,
+                    component: AnyComponent(
+                        FilledRoundedRectangleComponent(
+                            color: textColor.withMultipliedAlpha(0.1),
+                            cornerRadius: .value(10.0),
+                            smoothCorners: true
+                        )
+                    ),
+                    environment: {},
+                    containerSize: backgroundSize
+                )
+                let backgroundFrame = CGRect(origin: CGPoint(x: -10.0, y: component.insets.top), size: backgroundSize)
+                if let backgroundView = self.background.view {
+                    if backgroundView.superview == nil {
+                        self.addSubview(backgroundView)
+                    }
+                    transition.setFrame(view: backgroundView, frame: backgroundFrame)
+                }
+            }
+            
+            let textFrame = CGRect(origin: textOffset.offsetBy(dx: 0.0, dy: component.insets.top), size: textSize)
+            if let textView = self.text.view {
+                if textView.superview == nil {
+                    self.addSubview(textView)
+                }
+                transition.setFrame(view: textView, frame: textFrame)
+            }
+            return CGSize(width: size.width, height: size.height + component.insets.top + component.insets.bottom)
+        }
+    }
+    
+    public func makeView() -> View {
+        return View(frame: CGRect())
+    }
+    
+    public func update(view: View, availableSize: CGSize, state: EmptyComponentState, environment: Environment<AlertComponentEnvironment>, transition: ComponentTransition) -> CGSize {
+        return view.update(component: self, availableSize: availableSize, state: state, environment: environment, transition: transition)
+    }
+}