140 lines
4.4 KiB
Swift
140 lines
4.4 KiB
Swift
//
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// PickerBase.swift
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// VDSSample
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//
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// Created by Matt Bruce on 8/1/22.
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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 Combine
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public struct PickerType : RawRepresentable, Equatable, Hashable {
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public var rawValue: String
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public init(_ rawValue: String) {
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self.rawValue = rawValue
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}
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public init(rawValue: String) {
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self.rawValue = rawValue
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}
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public static var surface = PickerType(rawValue: "surface")
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public static var textPosition = PickerType(rawValue: "textPosition")
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public static var textSize = PickerType(rawValue: "textSize")
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public static var fontCategory = PickerType(rawValue: "fontCategory")
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}
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public protocol PickerViewable: UIPickerViewDataSource, UIPickerViewDelegate, Hashable {
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associatedtype EnumType: RawRepresentable
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var items: [EnumType] { get set }
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var onPickerDidSelect: ((EnumType) -> Void)? { get set }
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}
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public class PickerSelectorView<EnumType: RawRepresentable>: UIStackView, PickerViewable {
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private weak var picker: UIPickerView?
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fileprivate var selectedIndex = 0
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private var subscribers = Set<AnyCancellable>()
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private var label = UILabel()
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private var button = UIButton(type: .system).with { instance in
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instance.configuration = .filled()
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instance.setTitle("Select", for: .normal)
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}
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public var text: String = "" {
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didSet {
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label.text = text
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}
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}
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public var items: [EnumType] {
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didSet { selectedIndex = 0 }
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}
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public var onPickerDidSelect: ((EnumType) -> Void)?
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public init(title: String, picker: UIPickerView? = nil, items: [EnumType]) {
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self.picker = picker
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self.items = items
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super.init(frame: .zero)
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self.axis = .horizontal
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self.distribution = .fillEqually
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self.alignment = .fill
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label.text = title
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addArrangedSubview(label)
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addArrangedSubview(button)
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button
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.publisher(for: .touchUpInside)
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.sink { [weak self] _ in
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self?.picker?.delegate = self
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self?.picker?.dataSource = self
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self?.picker?.reloadAllComponents()
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self?.picker?.selectRow(self?.selectedIndex ?? 0, inComponent: 0, animated: false)
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self?.picker?.isHidden = false
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}.store(in: &subscribers)
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}
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public required init(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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public func numberOfComponents(in pickerView: UIPickerView) -> Int {
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1
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}
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public func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
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items.count + 1
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}
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public func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int ) -> String? {
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guard row > 0, let item = items[row-1].rawValue as? String else { return "" }
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return item
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}
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public func pickerView( _ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
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guard row - 1 >= 0 else { return }
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selectedIndex = row
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onPickerDidSelect?(items[row-1])
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pickerView.isHidden = true
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}
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}
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public class SurfacePickerSelectorView: PickerSelectorView<Surface>{
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init(picker: UIPickerView? = nil){
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super.init(title: "light", picker: picker, items: [.light, .dark])
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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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}
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public class TextPositionPickerSelectorView: PickerSelectorView<TextPosition>{
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init(picker: UIPickerView? = nil){
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super.init(title: "left", picker: picker, items: [.left, .right])
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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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}
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public class TextSizePickerSelectorView: PickerSelectorView<TypographicalStyle.FontSize>{
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init(title: String, picker: UIPickerView? = nil){
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super.init(title: title, picker: picker, items: [.small, .large])
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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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}
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public class FontCategoryPickerSelectorView: PickerSelectorView<TypographicalStyle.FontCategory>{
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init(title: String, picker: UIPickerView? = nil){
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super.init(title: title, picker: picker, items: TypographicalStyle.FontCategory.allCases)
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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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}
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