124 lines
3.6 KiB
Swift
124 lines
3.6 KiB
Swift
//
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// CollectionViewCell.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 CollectionViewCell<ModelHandlerType: ModelHandlerable & UIView>: UICollectionViewCell, ModelHandlerable, ViewProtocol, Resettable {
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public typealias ModelType = ModelHandlerType.ModelType
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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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public var modelHandler: ModelHandlerType = ModelHandlerType()
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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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isUserInteractionEnabled = isEnabled
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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)
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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)
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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) {
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super.init(frame: frame)
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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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public 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 shouldUpdateView(viewModel: ModelType) -> Bool {
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return modelHandler.shouldUpdateView(viewModel: viewModel)
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}
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open func updateView(viewModel: ModelType) {
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modelHandler.updateView(viewModel: viewModel)
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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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public func set(with model: ModelType) {
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self.model = model
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modelHandler.set(with: model)
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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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addSubview(modelHandler)
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modelHandler.topAnchor.constraint(equalTo: topAnchor).isActive = true
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modelHandler.leadingAnchor.constraint(equalTo: leadingAnchor).isActive = true
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modelHandler.trailingAnchor.constraint(equalTo: trailingAnchor).isActive = true
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modelHandler.bottomAnchor.constraint(equalTo: bottomAnchor).isActive = true
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}
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}
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