111 lines
3.1 KiB
Swift
111 lines
3.1 KiB
Swift
//
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// CollectionView.swift
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// VDS
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//
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// Created by Matt Bruce on 8/25/22.
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//
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import Foundation
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import UIKit
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import Combine
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open class CollectionView<ModelType: Modelable>: UICollectionView, ModelHandlerable, ViewProtocol, Resettable {
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//--------------------------------------------------
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// MARK: - Combine Properties
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//--------------------------------------------------
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@Published public var model: ModelType = ModelType()
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public var modelPublisher: Published<ModelType>.Publisher { $model }
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public var subscribers = Set<AnyCancellable>()
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//--------------------------------------------------
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// MARK: - Properties
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//--------------------------------------------------
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private var initialSetupPerformed = false
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@Proxy(\.model.surface)
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open var surface: Surface
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@Proxy(\.model.disabled)
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open var disabled: Bool {
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didSet {
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self.isEnabled = !disabled
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}
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}
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open var isEnabled: Bool {
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get { !model.disabled }
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set {
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//create local vars for clear coding
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let disabled = !newValue
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if model.disabled != disabled {
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model.disabled = disabled
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}
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}
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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, collectionViewLayout: UICollectionViewFlowLayout())
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initialSetup()
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}
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public required init(with model: ModelType) {
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super.init(frame: .zero, collectionViewLayout: UICollectionViewFlowLayout())
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initialSetup()
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set(with: model)
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}
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public required init(with model: ModelType, collectionViewLayout layout: UICollectionViewLayout) {
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super.init(frame: .zero, collectionViewLayout: layout)
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initialSetup()
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set(with: model)
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}
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public override init(frame: CGRect, collectionViewLayout layout: UICollectionViewLayout) {
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super.init(frame: frame, collectionViewLayout: layout)
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initialSetup()
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set(with: model)
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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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initialSetup()
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}
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//--------------------------------------------------
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// MARK: - Setup
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//--------------------------------------------------
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open func initialSetup() {
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if !initialSetupPerformed {
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initialSetupPerformed = true
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setupUpdateView()
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setup()
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}
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}
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//--------------------------------------------------
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// MARK: - Overrides
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//--------------------------------------------------
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open func updateView(viewModel: ModelType) {
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fatalError("Implement updateView")
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}
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open func reset() {
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backgroundColor = .clear
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if let model = model as? Resettable {
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model.reset()
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}
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}
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// MARK: - ViewProtocol
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/// Will be called only once.
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open func setup() {
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translatesAutoresizingMaskIntoConstraints = false
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insetsLayoutMarginsFromSafeArea = false
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}
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}
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