mirror of
https://github.com/Swiftgram/Telegram-iOS.git
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780 lines
32 KiB
Swift
780 lines
32 KiB
Swift
import Foundation
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import UIKit
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import Display
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import ComponentFlow
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import SwiftSignalKit
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import TelegramCore
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import TelegramPresentationData
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import AppBundle
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import AccountContext
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import MultilineTextComponent
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import MultilineTextWithEntitiesComponent
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import EmojiTextAttachmentView
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import TextFormat
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import ItemShimmeringLoadingComponent
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import AvatarNode
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import PeerInfoCoverComponent
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public final class GiftItemComponent: Component {
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public enum Subject: Equatable {
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case premium(months: Int32, price: String)
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case starGift(gift: StarGift.Gift, price: String)
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case uniqueGift(gift: StarGift.UniqueGift)
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}
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public struct Ribbon: Equatable {
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public enum Color: Equatable {
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case red
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case blue
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case custom(Int32, Int32)
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func colors(theme: PresentationTheme) -> [UIColor] {
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switch self {
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case .red:
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if theme.overallDarkAppearance {
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return [
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UIColor(rgb: 0x522124),
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UIColor(rgb: 0x653634)
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]
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} else {
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return [
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UIColor(rgb: 0xed1c26),
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UIColor(rgb: 0xff5c55)
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]
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}
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case .blue:
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if theme.overallDarkAppearance {
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return [
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UIColor(rgb: 0x142e42),
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UIColor(rgb: 0x354f5b)
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]
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} else {
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return [
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UIColor(rgb: 0x34a4fc),
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UIColor(rgb: 0x6fd3ff)
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]
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}
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case let .custom(topColor, _):
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return [
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UIColor(rgb: UInt32(bitPattern: topColor)).withMultiplied(hue: 0.97, saturation: 1.45, brightness: 0.89),
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UIColor(rgb: UInt32(bitPattern: topColor)).withMultiplied(hue: 1.01, saturation: 1.22, brightness: 1.04)
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]
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}
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}
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}
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public let text: String
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public let color: Color
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public init(text: String, color: Color) {
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self.text = text
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self.color = color
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}
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}
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public enum Peer: Equatable {
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case peer(EnginePeer)
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case anonymous
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}
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public enum Mode: Equatable {
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case generic
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case profile
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case thumbnail
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}
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let context: AccountContext
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let theme: PresentationTheme
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let peer: GiftItemComponent.Peer?
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let subject: GiftItemComponent.Subject
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let title: String?
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let subtitle: String?
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let ribbon: Ribbon?
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let isLoading: Bool
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let isHidden: Bool
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let isSoldOut: Bool
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let mode: Mode
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public init(
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context: AccountContext,
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theme: PresentationTheme,
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peer: GiftItemComponent.Peer?,
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subject: GiftItemComponent.Subject,
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title: String? = nil,
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subtitle: String? = nil,
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ribbon: Ribbon? = nil,
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isLoading: Bool = false,
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isHidden: Bool = false,
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isSoldOut: Bool = false,
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mode: Mode = .generic
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) {
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self.context = context
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self.theme = theme
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self.peer = peer
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self.subject = subject
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self.title = title
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self.subtitle = subtitle
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self.ribbon = ribbon
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self.isLoading = isLoading
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self.isHidden = isHidden
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self.isSoldOut = isSoldOut
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self.mode = mode
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}
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public static func ==(lhs: GiftItemComponent, rhs: GiftItemComponent) -> Bool {
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if lhs.context !== rhs.context {
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return false
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}
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if lhs.theme !== rhs.theme {
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return false
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}
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if lhs.peer != rhs.peer {
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return false
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}
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if lhs.subject != rhs.subject {
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return false
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}
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if lhs.title != rhs.title {
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return false
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}
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if lhs.subtitle != rhs.subtitle {
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return false
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}
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if lhs.ribbon != rhs.ribbon {
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return false
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}
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if lhs.isLoading != rhs.isLoading {
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return false
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}
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if lhs.isHidden != rhs.isHidden {
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return false
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}
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if lhs.isSoldOut != rhs.isSoldOut {
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return false
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}
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if lhs.mode != rhs.mode {
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return false
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}
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return true
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}
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public final class View: UIView {
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private var component: GiftItemComponent?
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private weak var componentState: EmptyComponentState?
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private let backgroundLayer = SimpleLayer()
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private var loadingBackground: ComponentView<Empty>?
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private let patternView = ComponentView<Empty>()
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private var avatarNode: AvatarNode?
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private let title = ComponentView<Empty>()
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private let subtitle = ComponentView<Empty>()
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private let button = ComponentView<Empty>()
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private let ribbon = UIImageView()
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private let ribbonText = ComponentView<Empty>()
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private var animationLayer: InlineStickerItemLayer?
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private var disposables = DisposableSet()
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private var fetchedFiles = Set<Int64>()
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private var hiddenIconBackground: UIVisualEffectView?
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private var hiddenIcon: UIImageView?
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override init(frame: CGRect) {
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super.init(frame: frame)
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self.layer.addSublayer(self.backgroundLayer)
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if #available(iOS 13.0, *) {
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self.backgroundLayer.cornerCurve = .circular
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}
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self.backgroundLayer.masksToBounds = true
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}
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required init?(coder: 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.disposables.dispose()
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}
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func update(component: GiftItemComponent, availableSize: CGSize, state: EmptyComponentState, environment: Environment<Empty>, transition: ComponentTransition) -> CGSize {
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let isFirstTime = self.component == nil
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let previousComponent = self.component
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self.component = component
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self.componentState = state
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var themeUpdated = false
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if previousComponent?.theme !== component.theme {
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themeUpdated = true
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}
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let size: CGSize
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let iconSize: CGSize
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let cornerRadius: CGFloat
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switch component.mode {
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case .generic:
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size = CGSize(width: availableSize.width, height: component.title != nil ? 178.0 : 154.0)
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iconSize = CGSize(width: 88.0, height: 88.0)
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cornerRadius = 10.0
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case .profile:
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size = availableSize
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iconSize = CGSize(width: 88.0, height: 88.0)
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cornerRadius = 10.0
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case .thumbnail:
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size = CGSize(width: availableSize.width, height: availableSize.width)
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iconSize = CGSize(width: floor(size.width * 0.7), height: floor(size.width * 0.7))
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cornerRadius = floor(availableSize.width * 0.2)
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}
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self.backgroundLayer.cornerRadius = cornerRadius
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if component.isLoading {
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let loadingBackground: ComponentView<Empty>
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if let current = self.loadingBackground {
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loadingBackground = current
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} else {
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loadingBackground = ComponentView<Empty>()
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self.loadingBackground = loadingBackground
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}
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let _ = loadingBackground.update(
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transition: transition,
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component: AnyComponent(
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ItemShimmeringLoadingComponent(color: component.theme.list.itemAccentColor, cornerRadius: 10.0)
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),
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environment: {},
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containerSize: size
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)
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if let loadingBackgroundView = loadingBackground.view {
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if loadingBackgroundView.layer.superlayer == nil {
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self.layer.insertSublayer(loadingBackgroundView.layer, above: self.backgroundLayer)
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}
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loadingBackgroundView.frame = CGRect(origin: .zero, size: size)
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}
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} else if let loadingBackground = self.loadingBackground {
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loadingBackground.view?.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.2, removeOnCompletion: false, completion: { _ in
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loadingBackground.view?.layer.removeFromSuperlayer()
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})
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self.loadingBackground = nil
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}
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var animationFile: TelegramMediaFile?
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var backgroundColor: UIColor?
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var secondBackgroundColor: UIColor?
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var patternColor: UIColor?
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var patternFile: TelegramMediaFile?
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var files: [Int64: TelegramMediaFile] = [:]
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let emoji: ChatTextInputTextCustomEmojiAttribute?
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var animationOffset: CGFloat = 0.0
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switch component.subject {
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case let .premium(months, _):
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emoji = ChatTextInputTextCustomEmojiAttribute(
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interactivelySelectedFromPackId: nil,
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fileId: 0,
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file: nil,
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custom: .animation(name: "Gift\(months)")
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)
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case let .starGift(gift, _):
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animationFile = gift.file
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emoji = ChatTextInputTextCustomEmojiAttribute(
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interactivelySelectedFromPackId: nil,
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fileId: gift.file.fileId.id,
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file: gift.file
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)
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animationOffset = 16.0
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case let .uniqueGift(gift):
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animationOffset = 16.0
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for attribute in gift.attributes {
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switch attribute {
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case let .model(_, file, _):
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animationFile = file
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if !self.fetchedFiles.contains(file.fileId.id) {
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self.disposables.add(freeMediaFileResourceInteractiveFetched(account: component.context.account, userLocation: .other, fileReference: .standalone(media: file), resource: file.resource).start())
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self.fetchedFiles.insert(file.fileId.id)
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}
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case let .pattern(_, file, _):
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patternFile = file
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files[file.fileId.id] = file
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case let .backdrop(_, innerColorValue, outerColorValue, patternColorValue, _, _):
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backgroundColor = UIColor(rgb: UInt32(bitPattern: outerColorValue))
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secondBackgroundColor = UIColor(rgb: UInt32(bitPattern: innerColorValue))
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patternColor = UIColor(rgb: UInt32(bitPattern: patternColorValue))
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default:
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break
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}
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}
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if let animationFile {
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emoji = ChatTextInputTextCustomEmojiAttribute(
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interactivelySelectedFromPackId: nil,
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fileId: animationFile.fileId.id,
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file: animationFile
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)
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} else {
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emoji = nil
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}
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}
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if self.animationLayer == nil, let emoji {
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let animationLayer = InlineStickerItemLayer(
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context: .account(component.context),
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userLocation: .other,
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attemptSynchronousLoad: false,
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emoji: emoji,
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file: animationFile,
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cache: component.context.animationCache,
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renderer: component.context.animationRenderer,
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unique: false,
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placeholderColor: component.theme.list.mediaPlaceholderColor,
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pointSize: CGSize(width: iconSize.width * 2.0, height: iconSize.height * 2.0),
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loopCount: 1
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)
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animationLayer.isVisibleForAnimations = true
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self.animationLayer = animationLayer
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self.layer.addSublayer(animationLayer)
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}
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let animationFrame = CGRect(origin: CGPoint(x: floorToScreenPixels((size.width - iconSize.width) / 2.0), y: component.mode == .generic ? animationOffset : floorToScreenPixels((size.height - iconSize.height) / 2.0)), size: iconSize)
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if let animationLayer = self.animationLayer {
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transition.setFrame(layer: animationLayer, frame: animationFrame)
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}
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if let backgroundColor {
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let _ = self.patternView.update(
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transition: .immediate,
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component: AnyComponent(PeerInfoCoverComponent(
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context: component.context,
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subject: .custom(backgroundColor, secondBackgroundColor, patternColor, patternFile?.fileId.id),
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files: files,
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isDark: false,
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avatarCenter: CGPoint(x: size.width / 2.0, y: animationFrame.midY),
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avatarScale: 1.0,
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defaultHeight: size.height,
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avatarTransitionFraction: 0.0,
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patternTransitionFraction: 0.0
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)),
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environment: {},
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containerSize: availableSize
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)
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if let backgroundView = self.patternView.view {
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if backgroundView.superview == nil {
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backgroundView.layer.cornerRadius = cornerRadius
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if #available(iOS 13.0, *) {
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backgroundView.layer.cornerCurve = .circular
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}
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backgroundView.clipsToBounds = true
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self.insertSubview(backgroundView, at: 1)
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}
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backgroundView.frame = CGRect(origin: .zero, size: size)
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}
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}
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if case .generic = component.mode {
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if let title = component.title {
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let titleSize = self.title.update(
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transition: transition,
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component: AnyComponent(
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MultilineTextComponent(
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text: .plain(NSAttributedString(string: title, font: Font.semibold(15.0), textColor: component.theme.list.itemPrimaryTextColor)),
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horizontalAlignment: .center
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)
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),
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environment: {},
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containerSize: availableSize
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)
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let titleFrame = CGRect(origin: CGPoint(x: floorToScreenPixels((availableSize.width - titleSize.width) / 2.0), y: 94.0), size: titleSize)
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if let titleView = self.title.view {
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if titleView.superview == nil {
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self.addSubview(titleView)
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}
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transition.setFrame(view: titleView, frame: titleFrame)
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}
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}
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if let subtitle = component.subtitle {
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let subtitleSize = self.subtitle.update(
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transition: transition,
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component: AnyComponent(
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MultilineTextComponent(
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text: .plain(NSAttributedString(string: subtitle, font: Font.regular(13.0), textColor: component.theme.list.itemPrimaryTextColor)),
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horizontalAlignment: .center
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)
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),
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environment: {},
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containerSize: availableSize
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)
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let subtitleFrame = CGRect(origin: CGPoint(x: floorToScreenPixels((availableSize.width - subtitleSize.width) / 2.0), y: 112.0), size: subtitleSize)
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if let subtitleView = self.subtitle.view {
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if subtitleView.superview == nil {
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self.addSubview(subtitleView)
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}
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transition.setFrame(view: subtitleView, frame: subtitleFrame)
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}
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}
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let buttonColor: UIColor
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var starsColor: UIColor?
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let price: String
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switch component.subject {
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case let .premium(_, priceValue), let .starGift(_, priceValue):
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if priceValue.containsEmoji {
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buttonColor = component.theme.overallDarkAppearance ? UIColor(rgb: 0xffc337) : UIColor(rgb: 0xd3720a)
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if !component.isSoldOut {
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starsColor = UIColor(rgb: 0xffbe27)
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}
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} else {
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buttonColor = component.theme.list.itemAccentColor
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}
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price = priceValue
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case .uniqueGift:
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buttonColor = UIColor.white
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starsColor = UIColor.white
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price = ""
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}
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let buttonSize = self.button.update(
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transition: transition,
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component: AnyComponent(
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ButtonContentComponent(
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context: component.context,
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text: price,
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color: buttonColor,
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starsColor: starsColor
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)
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),
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environment: {},
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containerSize: availableSize
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)
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let buttonFrame = CGRect(origin: CGPoint(x: floorToScreenPixels((availableSize.width - buttonSize.width) / 2.0), y: size.height - buttonSize.height - 10.0), size: buttonSize)
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if let buttonView = self.button.view {
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if buttonView.superview == nil {
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self.addSubview(buttonView)
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}
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transition.setFrame(view: buttonView, frame: buttonFrame)
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}
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}
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if let ribbon = component.ribbon {
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let ribbonFontSize: CGFloat
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if case .profile = component.mode {
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ribbonFontSize = 9.0
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} else {
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ribbonFontSize = 10.0
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}
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let ribbonTextSize = self.ribbonText.update(
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transition: transition,
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component: AnyComponent(
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MultilineTextComponent(
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text: .plain(NSAttributedString(string: ribbon.text, font: Font.semibold(ribbonFontSize), textColor: .white)),
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horizontalAlignment: .center
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)
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),
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environment: {},
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containerSize: availableSize
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)
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if let ribbonTextView = self.ribbonText.view {
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if ribbonTextView.superview == nil {
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self.addSubview(self.ribbon)
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self.addSubview(ribbonTextView)
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}
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ribbonTextView.bounds = CGRect(origin: .zero, size: ribbonTextSize)
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if self.ribbon.image == nil || themeUpdated || previousComponent?.ribbon?.color != component.ribbon?.color {
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var direction: GradientImageDirection = .diagonal
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if case .custom = ribbon.color {
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direction = .mirroredDiagonal
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}
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self.ribbon.image = generateGradientTintedImage(image: UIImage(bundleImageName: "Premium/GiftRibbon"), colors: ribbon.color.colors(theme: component.theme), direction: direction)
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}
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if let ribbonImage = self.ribbon.image {
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self.ribbon.frame = CGRect(origin: CGPoint(x: size.width - ribbonImage.size.width + 2.0, y: -2.0), size: ribbonImage.size)
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}
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ribbonTextView.transform = CGAffineTransform(rotationAngle: .pi / 4.0)
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ribbonTextView.center = CGPoint(x: size.width - 20.0, y: 20.0)
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}
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} else {
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if self.ribbonText.view?.superview != nil {
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self.ribbon.removeFromSuperview()
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self.ribbonText.view?.removeFromSuperview()
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}
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}
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if let peer = component.peer {
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let avatarNode: AvatarNode
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if let current = self.avatarNode {
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avatarNode = current
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} else {
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avatarNode = AvatarNode(font: avatarPlaceholderFont(size: 8.0))
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self.addSubview(avatarNode.view)
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self.avatarNode = avatarNode
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}
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switch peer {
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case let .peer(peer):
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avatarNode.setPeer(context: component.context, theme: component.theme, peer: peer, displayDimensions: CGSize(width: 20.0, height: 20.0))
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case .anonymous:
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avatarNode.setPeer(context: component.context, theme: component.theme, peer: nil, overrideImage: .anonymousSavedMessagesIcon(isColored: true))
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}
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avatarNode.frame = CGRect(origin: CGPoint(x: 5.0, y: 5.0), size: CGSize(width: 20.0, height: 20.0))
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}
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|
|
if let backgroundColor, let _ = secondBackgroundColor {
|
|
self.backgroundLayer.backgroundColor = backgroundColor.cgColor
|
|
} else {
|
|
self.backgroundLayer.backgroundColor = component.theme.list.itemBlocksBackgroundColor.cgColor
|
|
}
|
|
|
|
transition.setFrame(layer: self.backgroundLayer, frame: CGRect(origin: .zero, size: size))
|
|
|
|
if component.isHidden {
|
|
let hiddenIconBackground: UIVisualEffectView
|
|
let hiddenIcon: UIImageView
|
|
if let currentBackground = self.hiddenIconBackground, let currentIcon = self.hiddenIcon {
|
|
hiddenIconBackground = currentBackground
|
|
hiddenIcon = currentIcon
|
|
} else {
|
|
let blurEffect: UIBlurEffect
|
|
if #available(iOS 13.0, *) {
|
|
blurEffect = UIBlurEffect(style: .systemThinMaterialDark)
|
|
} else {
|
|
blurEffect = UIBlurEffect(style: .dark)
|
|
}
|
|
hiddenIconBackground = UIVisualEffectView(effect: blurEffect)
|
|
hiddenIconBackground.clipsToBounds = true
|
|
hiddenIconBackground.layer.cornerRadius = 15.0
|
|
self.hiddenIconBackground = hiddenIconBackground
|
|
|
|
hiddenIcon = UIImageView(image: generateTintedImage(image: UIImage(bundleImageName: "Peer Info/HiddenIcon"), color: .white))
|
|
self.hiddenIcon = hiddenIcon
|
|
|
|
self.addSubview(hiddenIconBackground)
|
|
hiddenIconBackground.contentView.addSubview(hiddenIcon)
|
|
|
|
if !isFirstTime {
|
|
hiddenIconBackground.layer.animateScale(from: 0.01, to: 1.0, duration: 0.2)
|
|
hiddenIconBackground.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.2)
|
|
}
|
|
}
|
|
|
|
let iconSize = CGSize(width: 30.0, height: 30.0)
|
|
hiddenIconBackground.frame = iconSize.centered(around: animationFrame.center)
|
|
hiddenIcon.frame = CGRect(origin: .zero, size: iconSize)
|
|
} else {
|
|
if let hiddenIconBackground = self.hiddenIconBackground {
|
|
self.hiddenIconBackground = nil
|
|
self.hiddenIcon = nil
|
|
|
|
hiddenIconBackground.layer.animateAlpha(from: 1.0, to: 0.01, duration: 0.2, removeOnCompletion: false, completion: { _ in
|
|
hiddenIconBackground.removeFromSuperview()
|
|
})
|
|
hiddenIconBackground.layer.animateScale(from: 1.0, to: 0.01, duration: 0.2, removeOnCompletion: false)
|
|
}
|
|
}
|
|
|
|
return size
|
|
}
|
|
}
|
|
|
|
public func makeView() -> View {
|
|
return View(frame: CGRect())
|
|
}
|
|
|
|
public func update(view: View, availableSize: CGSize, state: EmptyComponentState, environment: Environment<Empty>, transition: ComponentTransition) -> CGSize {
|
|
return view.update(component: self, availableSize: availableSize, state: state, environment: environment, transition: transition)
|
|
}
|
|
}
|
|
|
|
private final class ButtonContentComponent: Component {
|
|
let context: AccountContext
|
|
let text: String
|
|
let color: UIColor
|
|
let starsColor: UIColor?
|
|
|
|
public init(
|
|
context: AccountContext,
|
|
text: String,
|
|
color: UIColor,
|
|
starsColor: UIColor? = nil
|
|
) {
|
|
self.context = context
|
|
self.text = text
|
|
self.color = color
|
|
self.starsColor = starsColor
|
|
}
|
|
|
|
public static func ==(lhs: ButtonContentComponent, rhs: ButtonContentComponent) -> Bool {
|
|
if lhs.context !== rhs.context {
|
|
return false
|
|
}
|
|
if lhs.text != rhs.text {
|
|
return false
|
|
}
|
|
if lhs.color != rhs.color {
|
|
return false
|
|
}
|
|
if lhs.starsColor != rhs.starsColor {
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
|
|
public final class View: UIView {
|
|
private var component: ButtonContentComponent?
|
|
private weak var componentState: EmptyComponentState?
|
|
|
|
private let backgroundLayer = SimpleLayer()
|
|
private let title = ComponentView<Empty>()
|
|
|
|
private var starsLayer: StarsButtonEffectLayer?
|
|
|
|
override init(frame: CGRect) {
|
|
super.init(frame: frame)
|
|
|
|
self.layer.addSublayer(self.backgroundLayer)
|
|
self.backgroundLayer.masksToBounds = true
|
|
}
|
|
|
|
required init?(coder: NSCoder) {
|
|
fatalError("init(coder:) has not been implemented")
|
|
}
|
|
|
|
func update(component: ButtonContentComponent, availableSize: CGSize, state: EmptyComponentState, environment: Environment<Empty>, transition: ComponentTransition) -> CGSize {
|
|
self.component = component
|
|
self.componentState = state
|
|
|
|
let attributedText = NSMutableAttributedString(string: component.text, font: Font.semibold(11.0), textColor: component.color)
|
|
let range = (attributedText.string as NSString).range(of: "⭐️")
|
|
if range.location != NSNotFound {
|
|
attributedText.addAttribute(ChatTextInputAttributes.customEmoji, value: ChatTextInputTextCustomEmojiAttribute(interactivelySelectedFromPackId: nil, fileId: 0, file: nil, custom: .stars(tinted: false)), range: range)
|
|
attributedText.addAttribute(.font, value: Font.semibold(15.0), range: range)
|
|
attributedText.addAttribute(.baselineOffset, value: 2.0, range: NSRange(location: range.upperBound, length: attributedText.length - range.upperBound))
|
|
}
|
|
|
|
let titleSize = self.title.update(
|
|
transition: transition,
|
|
component: AnyComponent(
|
|
MultilineTextWithEntitiesComponent(
|
|
context: component.context,
|
|
animationCache: component.context.animationCache,
|
|
animationRenderer: component.context.animationRenderer,
|
|
placeholderColor: .white,
|
|
text: .plain(attributedText)
|
|
)
|
|
),
|
|
environment: {},
|
|
containerSize: availableSize
|
|
)
|
|
|
|
let padding: CGFloat = 9.0
|
|
let size = CGSize(width: titleSize.width + padding * 2.0, height: 30.0)
|
|
|
|
if let starsColor = component.starsColor {
|
|
let starsLayer: StarsButtonEffectLayer
|
|
if let current = self.starsLayer {
|
|
starsLayer = current
|
|
} else {
|
|
starsLayer = StarsButtonEffectLayer()
|
|
self.layer.addSublayer(starsLayer)
|
|
self.starsLayer = starsLayer
|
|
}
|
|
starsLayer.frame = CGRect(origin: .zero, size: size)
|
|
starsLayer.update(color: starsColor, size: size)
|
|
} else {
|
|
self.starsLayer?.removeFromSuperlayer()
|
|
self.starsLayer = nil
|
|
}
|
|
|
|
let titleFrame = CGRect(origin: CGPoint(x: floorToScreenPixels((size.width - titleSize.width) / 2.0), y: floorToScreenPixels((size.height - titleSize.height) / 2.0)), size: titleSize)
|
|
if let titleView = self.title.view {
|
|
if titleView.superview == nil {
|
|
self.addSubview(titleView)
|
|
}
|
|
transition.setFrame(view: titleView, frame: titleFrame)
|
|
}
|
|
|
|
let backgroundColor: UIColor
|
|
if component.color.rgb == 0xd3720a {
|
|
backgroundColor = UIColor(rgb: 0xffc83d, alpha: 0.2)
|
|
} else {
|
|
backgroundColor = component.color.withAlphaComponent(0.1)
|
|
}
|
|
|
|
self.backgroundLayer.backgroundColor = backgroundColor.cgColor
|
|
transition.setFrame(layer: self.backgroundLayer, frame: CGRect(origin: .zero, size: size))
|
|
self.backgroundLayer.cornerRadius = size.height / 2.0
|
|
|
|
return size
|
|
}
|
|
}
|
|
|
|
public func makeView() -> View {
|
|
return View(frame: CGRect())
|
|
}
|
|
|
|
public func update(view: View, availableSize: CGSize, state: EmptyComponentState, environment: Environment<Empty>, transition: ComponentTransition) -> CGSize {
|
|
return view.update(component: self, availableSize: availableSize, state: state, environment: environment, transition: transition)
|
|
}
|
|
}
|
|
|
|
private final class StarsButtonEffectLayer: SimpleLayer {
|
|
let emitterLayer = CAEmitterLayer()
|
|
|
|
override init() {
|
|
super.init()
|
|
|
|
self.addSublayer(self.emitterLayer)
|
|
}
|
|
|
|
override init(layer: Any) {
|
|
super.init(layer: layer)
|
|
}
|
|
|
|
required init?(coder: NSCoder) {
|
|
fatalError("init(coder:) has not been implemented")
|
|
}
|
|
|
|
private func setup(color: UIColor) {
|
|
let emitter = CAEmitterCell()
|
|
emitter.name = "emitter"
|
|
emitter.contents = UIImage(bundleImageName: "Premium/Stars/Particle")?.cgImage
|
|
emitter.birthRate = 14.0
|
|
emitter.lifetime = 2.0
|
|
emitter.velocity = 12.0
|
|
emitter.velocityRange = 3
|
|
emitter.scale = 0.1
|
|
emitter.scaleRange = 0.08
|
|
emitter.alphaRange = 0.1
|
|
emitter.emissionRange = .pi * 2.0
|
|
emitter.setValue(3.0, forKey: "mass")
|
|
emitter.setValue(2.0, forKey: "massRange")
|
|
|
|
let staticColors: [Any] = [
|
|
color.withAlphaComponent(0.0).cgColor,
|
|
color.cgColor,
|
|
color.cgColor,
|
|
color.withAlphaComponent(0.0).cgColor
|
|
]
|
|
let staticColorBehavior = CAEmitterCell.createEmitterBehavior(type: "colorOverLife")
|
|
staticColorBehavior.setValue(staticColors, forKey: "colors")
|
|
emitter.setValue([staticColorBehavior], forKey: "emitterBehaviors")
|
|
|
|
self.emitterLayer.emitterCells = [emitter]
|
|
}
|
|
|
|
func update(color: UIColor, size: CGSize) {
|
|
if self.emitterLayer.emitterCells == nil {
|
|
self.setup(color: color)
|
|
}
|
|
self.emitterLayer.emitterShape = .circle
|
|
self.emitterLayer.emitterSize = CGSize(width: size.width * 0.7, height: size.height * 0.7)
|
|
self.emitterLayer.emitterMode = .surface
|
|
self.emitterLayer.frame = CGRect(origin: .zero, size: size)
|
|
self.emitterLayer.emitterPosition = CGPoint(x: size.width / 2.0, y: size.height / 2.0)
|
|
}
|
|
}
|