216 lines
8.3 KiB
Swift
216 lines
8.3 KiB
Swift
//
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// LabelViewController.swift
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// VDSSample
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//
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// Created by Matt Bruce on 8/16/22.
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//
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import Foundation
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import UIKit
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import VDS
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import VDSColorTokens
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class LabelViewController: BaseViewController<Label> {
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lazy var textSizePickerSelectorView = {
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TextSizePickerSelectorView(title: "",
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picker: self.picker)
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}()
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lazy var textPositionPickerSelectorView = {
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PickerSelectorView(title: TextPosition.left.rawValue,
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picker: self.picker,
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items: TextPosition.allCases)
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}()
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lazy var fontCategoryPickerSelectorView = {
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FontCategoryPickerSelectorView(title: "",
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picker: self.picker)
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}()
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var lineheightRange = Slider()
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var lineSpacingRange = Slider()
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var baselineOffsetRange = Slider()
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var currentStyle: TextStyle!
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var boldSwitch = Toggle()
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var disabledSwitch = Toggle()
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var textField = TextField()
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private var isBold: Bool = false
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var lineHeightLabel = UILabel().with { $0.translatesAutoresizingMaskIntoConstraints = false; $0.lineBreakMode = .byWordWrapping; $0.numberOfLines = 0}
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override func viewDidLoad() {
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super.viewDidLoad()
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let stack = UIStackView()
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stack.axis = .vertical
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stack.spacing = 10
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stack.addArrangedSubview(component)
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stack.addArrangedSubview(lineHeightLabel)
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addContentTopView(view: stack)
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setupPicker()
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setupModel()
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}
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var defaultLineHeightLabel: UILabel?
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override func allTextFields() -> [TextField]? { [textField] }
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override func setupForm(){
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super.setupForm()
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addFormRow(label: "Disabled", view: .makeWrapper(for: disabledSwitch))
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addFormRow(label: "Bold", view: .makeWrapper(for: boldSwitch))
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addFormRow(label: "Surface", view: surfacePickerSelectorView)
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addFormRow(label: "Text Position", view: textPositionPickerSelectorView)
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addFormRow(label: "Font Category", view: fontCategoryPickerSelectorView)
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addFormRow(label: "Text Size", view: textSizePickerSelectorView)
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let view = addFormRow(label: "Line Height", view: lineheightRange)
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addFormRow(label: "Line Spacing", view: lineSpacingRange)
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addFormRow(label: "Baseline Offset", view: baselineOffsetRange)
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defaultLineHeightLabel = view.viewWithTag(1) as? UILabel
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addFormRow(label: "Text", view: textField)
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disabledSwitch.onChange = { [weak self] sender in
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self?.component.disabled = sender.isOn
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}
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boldSwitch
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.publisher(for: .valueChanged)
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.sink { [weak self] sender in
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self?.isBold = sender.isOn
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self?.updateLabelStyle()
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}.store(in: &subscribers)
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textField
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.textPublisher
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.sink { [weak self] text in
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self?.component.text = text
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self?.lineHeightLabel.text = text
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}.store(in: &subscribers)
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lineheightRange.maximumValue = 20.0
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lineheightRange.minimumValue = 0.0
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lineheightRange.value = 2.0
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lineheightRange.publisher(for: .valueChanged).sink(receiveValue: { [weak self] slider in
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guard let self else { return }
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let textStyle = self.component.textStyle
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self.component.textStyle = TextStyle(rawValue: textStyle.rawValue,
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fontFace: textStyle.fontFace,
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pointSize: textStyle.pointSize,
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lineHeight: CGFloat(slider.value),
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letterSpacing: textStyle.letterSpacing)
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}).store(in: &subscribers)
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lineSpacingRange.maximumValue = 80.0
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lineSpacingRange.minimumValue = 0.0
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lineSpacingRange.value = 0.0
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lineSpacingRange.publisher(for: .valueChanged).sink(receiveValue: { [weak self] slider in
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guard let self else { return }
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let textStyle = self.component.textStyle
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self.component.textStyle = TextStyle(rawValue: textStyle.rawValue,
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fontFace: textStyle.fontFace,
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pointSize: textStyle.pointSize,
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lineHeight: textStyle.lineHeight,
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letterSpacing: textStyle.letterSpacing,
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lineSpacing: CGFloat(slider.value),
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baselineOffset: textStyle.baselineOffset
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)
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}).store(in: &subscribers)
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baselineOffsetRange.maximumValue = 100
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baselineOffsetRange.minimumValue = -100
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baselineOffsetRange.value = 0.0
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baselineOffsetRange.publisher(for: .valueChanged).sink(receiveValue: { [weak self] slider in
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guard let self else { return }
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let textStyle = self.component.textStyle
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self.component.textStyle = TextStyle(rawValue: textStyle.rawValue,
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fontFace: textStyle.fontFace,
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pointSize: textStyle.pointSize,
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lineHeight: textStyle.lineHeight,
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letterSpacing: textStyle.letterSpacing,
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lineSpacing: textStyle.lineSpacing,
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baselineOffset: CGFloat(slider.value)
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)
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}).store(in: &subscribers)
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}
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func setupModel() {
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component.text = "Label Component"
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component.textStyle = .featureSmall
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lineHeightLabel.text = component.text
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lineHeightLabel.font = component.textStyle.font
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//setup UI
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surfacePickerSelectorView.text = component.surface.rawValue
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disabledSwitch.isOn = component.disabled
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boldSwitch.isOn = isBold
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textField.text = component.text
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//set the font
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fontCategory = .feature
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fontCategoryPickerSelectorView.text = "Feature"
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textSize = .small
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textSizePickerSelectorView.text = "Small"
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updateLabelStyle()
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}
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override func showDebug(show: Bool) {
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super.showDebug(show: show)
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lineHeightLabel.debugBorder(show: show)
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}
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//Picker
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private var fontCategory: TextStyle.FontCategory = .feature {
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didSet {
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fontCategoryPickerSelectorView.text = fontCategory.rawValue
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textSizePickerSelectorView.items = fontCategory.sizes
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if textSizePickerSelectorView.items.count > 0 {
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textSize = textSizePickerSelectorView.items[0]
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} else {
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textSize = nil
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}
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updateLabelStyle()
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}
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}
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private var textSize: TextStyle.FontSize? = .large {
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didSet {
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textSizePickerSelectorView.text = textSize?.rawValue ?? ""
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updateLabelStyle()
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}
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}
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func updateLabelStyle(){
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if let style = fontCategory.style(for: textSize, isBold: isBold) {
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component.textStyle = style
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currentStyle = style
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let defaultLineHeight = style.font.lineHeight
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lineHeightLabel.font = style.font
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lineheightRange.maximumValue = Float(defaultLineHeight) * 1.50
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lineheightRange.minimumValue = Float(defaultLineHeight) * 0.50
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lineheightRange.value = Float(style.lineHeight)
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defaultLineHeightLabel?.text = "Line Height - d:\(defaultLineHeight) s:\(currentStyle.lineHeight)"
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}
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}
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func setupPicker(){
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surfacePickerSelectorView.onPickerDidSelect = { [weak self] item in
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self?.component.surface = item
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self?.contentTopView.backgroundColor = item.color
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}
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textPositionPickerSelectorView.onPickerDidSelect = { [weak self] item in
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self?.component.textPosition = item
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}
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textSizePickerSelectorView.onPickerDidSelect = { [weak self] item in
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self?.textSize = item
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}
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fontCategoryPickerSelectorView.onPickerDidSelect = { [weak self] item in
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self?.fontCategory = item
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}
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}
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}
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