303 lines
13 KiB
Swift
303 lines
13 KiB
Swift
//
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// TitleLockup.swift
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// VDS
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//
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// Created by Matt Bruce on 12/19/22.
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//
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import Foundation
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import UIKit
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import VDSColorTokens
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import Combine
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@objc(VDSTitleLockup)
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open class TitleLockup: View {
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//--------------------------------------------------
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// MARK: - Enums
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//--------------------------------------------------
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public enum TextPosition: String, EnumSubset {
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case left, center
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public var defaultValue: VDS.TextPosition { .left }
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}
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//--------------------------------------------------
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// MARK: - Initializers
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//--------------------------------------------------
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required public init() {
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super.init(frame: .zero)
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}
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public override init(frame: CGRect) {
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super.init(frame: .zero)
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}
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public required init?(coder: NSCoder) {
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super.init(coder: coder)
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}
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//--------------------------------------------------
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// MARK: - Private Properties
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//--------------------------------------------------
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private var stackView = UIStackView().with {
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$0.translatesAutoresizingMaskIntoConstraints = false
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$0.axis = .vertical
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$0.distribution = .fill
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}
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//--------------------------------------------------
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// MARK: - Configuration Properties
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//--------------------------------------------------
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// Sizes are from InVision design specs.
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open var topTextStyleSpacingConfig: TextStyle.SpacingConfig = {
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let configs = [
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TextStyle.DeviceSpacingConfig([.boldTitleLarge, .titleLarge],
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neighboring: [.bodySmall, .bodyMedium, .bodyLarge],
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spacing: 12.0,
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deviceType: .iPad),
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TextStyle.DeviceSpacingConfig([.boldTitleXLarge, .titleXLarge],
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neighboring: [.titleMedium, .bodyLarge],
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spacing: 12.0,
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deviceType: .iPad),
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TextStyle.DeviceSpacingConfig([.boldTitle2XLarge, .title2XLarge, .boldFeatureXSmall, .featureXSmall],
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neighboring: [.titleMedium, .titleLarge],
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spacing: 16.0,
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deviceType: .iPad),
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TextStyle.DeviceSpacingConfig([.boldTitle2XLarge, .title2XLarge, .boldFeatureXSmall, .featureXSmall],
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neighboring: [.bodyLarge],
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spacing: 12.0,
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deviceType: .iPad),
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TextStyle.DeviceSpacingConfig([.boldFeatureSmall, .featureSmall, .boldFeatureMedium, .featureMedium],
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neighboring: [.titleMedium, .titleLarge],
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spacing: 16.0,
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deviceType: .iPad),
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TextStyle.DeviceSpacingConfig([.boldFeatureSmall, .featureSmall, .boldFeatureMedium, .featureMedium],
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neighboring: [.bodyLarge],
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spacing: 12.0,
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deviceType: .iPad),
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TextStyle.DeviceSpacingConfig([.boldTitleXLarge, .titleXLarge],
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neighboring: [.bodyLarge, .bodyMedium, .bodySmall, .titleMedium],
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spacing: 12.0,
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deviceType: .iPhone),
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TextStyle.DeviceSpacingConfig([.boldTitle2XLarge, .title2XLarge, .boldFeatureXSmall, .featureXSmall],
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neighboring: [.bodyLarge, .bodyMedium, .titleMedium],
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spacing: 12.0,
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deviceType: .iPhone),
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TextStyle.DeviceSpacingConfig([.boldFeatureSmall, .featureSmall],
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neighboring: [.titleLarge, .bodyLarge],
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spacing: 12.0,
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deviceType: .iPhone),
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TextStyle.DeviceSpacingConfig([.boldFeatureMedium, .featureMedium],
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neighboring: [.titleLarge, .titleXLarge],
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spacing: 16.0,
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deviceType: .iPhone),
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TextStyle.DeviceSpacingConfig([.boldFeatureMedium, .featureMedium],
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neighboring: [.bodyLarge],
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spacing: 12.0,
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deviceType: .iPhone)
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]
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return TextStyle.SpacingConfig(configs: configs)
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}()
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open var bottomTextStyleSpacingConfig: TextStyle.SpacingConfig = {
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let configs = [
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TextStyle.DeviceSpacingConfig([.boldTitleLarge, .titleLarge],
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neighboring: [.bodySmall, .bodyMedium, .bodyLarge],
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spacing: 12.0,
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deviceType: .iPad),
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TextStyle.DeviceSpacingConfig([.boldTitleXLarge, .titleXLarge],
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neighboring: [.titleMedium, .bodyLarge],
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spacing: 16.0,
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deviceType: .iPad),
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TextStyle.DeviceSpacingConfig([.boldTitle2XLarge, .title2XLarge, .boldFeatureXSmall, .featureXSmall],
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neighboring: [.titleMedium, .titleLarge],
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spacing: 24.0,
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deviceType: .iPad),
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TextStyle.DeviceSpacingConfig([.boldTitle2XLarge, .title2XLarge, .boldFeatureXSmall, .featureXSmall],
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neighboring: [.bodyLarge],
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spacing: 24.0,
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deviceType: .iPad),
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TextStyle.DeviceSpacingConfig([.boldFeatureSmall, .featureSmall, .boldFeatureMedium, .featureMedium],
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neighboring: [.titleMedium, .titleLarge],
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spacing: 24.0,
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deviceType: .iPad),
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TextStyle.DeviceSpacingConfig([.boldFeatureSmall, .featureSmall, .boldFeatureMedium, .featureMedium],
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neighboring: [.bodyLarge],
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spacing: 24.0,
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deviceType: .iPad),
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TextStyle.DeviceSpacingConfig([.boldTitleXLarge, .titleXLarge],
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neighboring: [.bodyLarge, .bodyMedium, .bodySmall, .titleMedium],
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spacing: 12.0,
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deviceType: .iPhone),
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TextStyle.DeviceSpacingConfig([.boldTitle2XLarge, .title2XLarge, .boldFeatureXSmall, .featureXSmall],
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neighboring: [.bodyLarge, .bodyMedium, .titleMedium],
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spacing: 16,
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deviceType: .iPhone),
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TextStyle.DeviceSpacingConfig([.boldFeatureSmall, .featureSmall],
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neighboring: [.titleLarge, .bodyLarge],
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spacing: 16.0,
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deviceType: .iPhone),
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TextStyle.DeviceSpacingConfig([.boldFeatureMedium, .featureMedium],
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neighboring: [.titleLarge, .titleXLarge],
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spacing: 24.0,
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deviceType: .iPhone),
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TextStyle.DeviceSpacingConfig([.boldFeatureMedium, .featureMedium],
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neighboring: [.bodyLarge],
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spacing: 24.0,
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deviceType: .iPhone)
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]
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return TextStyle.SpacingConfig(configs: configs)
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}()
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//--------------------------------------------------
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// MARK: - Public Properties
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//--------------------------------------------------
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open var textPosition: TextPosition = .left { didSet { didChange() }}
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//style
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open var otherTextStyle: OtherTextStyle = UIDevice.isIPad ? .bodyLarge : .bodyMedium { didSet { didChange() }}
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//first row
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open var eyebrowLabel = Label().with {
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$0.setContentCompressionResistancePriority(.required, for: .vertical)
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}
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open var eyebrowModel: EyebrowModel? { didSet { didChange() }}
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//second row
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open var titleLabel = Label().with {
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$0.setContentCompressionResistancePriority(.required, for: .vertical)
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}
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open var titleModel: TitleModel? { didSet { didChange() }}
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//third row
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open var subTitleLabel = Label().with {
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$0.setContentCompressionResistancePriority(.required, for: .vertical)
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}
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open var subTitleModel: SubTitleModel? { didSet { didChange() }}
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//--------------------------------------------------
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// MARK: - Lifecycle
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//--------------------------------------------------
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open override func setup() {
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super.setup()
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isAccessibilityElement = true
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accessibilityTraits = .button
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addSubview(stackView)
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stackView.spacing = 0.0
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stackView.addArrangedSubview(eyebrowLabel)
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stackView.addArrangedSubview(titleLabel)
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stackView.addArrangedSubview(subTitleLabel)
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//pin stackview to edges
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stackView.pinToSuperView()
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}
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open override func reset() {
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super.reset()
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titleLabel.reset()
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eyebrowLabel.reset()
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subTitleLabel.reset()
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textPosition = .left
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eyebrowModel = nil
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titleModel = nil
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subTitleModel = nil
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otherTextStyle = .bodyLarge
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}
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//--------------------------------------------------
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// MARK: - State
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//--------------------------------------------------
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open override func updateView() {
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super.updateView()
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let allLabelsTextPosition = textPosition.value
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var eyebrowTextIsEmpty = true
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var titleTextIsEmpty = true
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var subTitleTextIsEmpty = true
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if let eyebrowModel, !eyebrowModel.text.isEmpty {
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eyebrowTextIsEmpty = false
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eyebrowLabel.textPosition = allLabelsTextPosition
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eyebrowLabel.textStyle = otherTextStyle.value
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eyebrowLabel.text = eyebrowModel.text
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eyebrowLabel.attributes = eyebrowModel.textAttributes
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eyebrowLabel.numberOfLines = eyebrowModel.numberOfLines
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eyebrowLabel.surface = surface
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} else {
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eyebrowLabel.reset()
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}
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if let titleModel, !titleModel.text.isEmpty {
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titleTextIsEmpty = false
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titleLabel.textPosition = allLabelsTextPosition
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titleLabel.textStyle = titleModel.textStyle.value
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titleLabel.text = titleModel.text
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titleLabel.attributes = titleModel.textAttributes
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titleLabel.numberOfLines = titleModel.numberOfLines
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titleLabel.surface = surface
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} else {
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titleLabel.reset()
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}
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if let subTitleModel, !subTitleModel.text.isEmpty {
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subTitleTextIsEmpty = false
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subTitleLabel.textPosition = allLabelsTextPosition
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subTitleLabel.textStyle = otherTextStyle.value
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subTitleLabel.text = subTitleModel.text
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subTitleLabel.attributes = subTitleModel.textAttributes
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subTitleLabel.numberOfLines = subTitleModel.numberOfLines
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subTitleLabel.surface = surface
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subTitleLabel.disabled = subTitleModel.textColor == .secondary
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} else {
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subTitleLabel.reset()
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}
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//if both first 2 rows not empty set spacing
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if let eyebrowModel, let titleModel, !eyebrowModel.text.isEmpty, !titleModel.text.isEmpty {
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stackView.spacing = topTextStyleSpacingConfig.spacing(for: titleModel.textStyle.value, neighboring: otherTextStyle.value)
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} else {
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stackView.spacing = 0.0
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}
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//if either first 2 rows not empty and subtile not empty, create space else collapse
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if let titleModel, (!eyebrowTextIsEmpty || !titleTextIsEmpty) && !subTitleTextIsEmpty {
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let bottomSpace = bottomTextStyleSpacingConfig.spacing(for: titleModel.textStyle.value, neighboring: otherTextStyle.value)
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stackView.setCustomSpacing(bottomSpace, after: titleLabel)
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} else if (!eyebrowTextIsEmpty || !titleTextIsEmpty) && subTitleTextIsEmpty {
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stackView.setCustomSpacing(0.0, after: titleLabel)
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}
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//hide/show
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eyebrowLabel.isHidden = eyebrowTextIsEmpty
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titleLabel.isHidden = titleTextIsEmpty
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subTitleLabel.isHidden = subTitleTextIsEmpty
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}
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}
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