112 lines
3.3 KiB
Swift
112 lines
3.3 KiB
Swift
//
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// Icon.swift
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// VDS
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//
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// Created by Matt Bruce on 1/9/23.
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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(VDSIcon)
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open class Icon: View {
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//--------------------------------------------------
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// MARK: - Private Properties
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//--------------------------------------------------
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private var widthConstraint: NSLayoutConstraint?
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private var heightConstraint: NSLayoutConstraint?
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//--------------------------------------------------
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// MARK: - Public Properties
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//--------------------------------------------------
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open var imageView = UIImageView().with {
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$0.translatesAutoresizingMaskIntoConstraints = false
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$0.contentMode = .scaleAspectFill
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$0.clipsToBounds = true
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}
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open var color: Color = .black { didSet { didChange() }}
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open var size: Size = .medium { didSet { didChange() }}
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open var name: Name? { didSet { didChange() }}
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open var customSize: Int? { didSet { didChange() }}
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//functions
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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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addSubview(imageView)
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imageView.pinToSuperView()
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heightConstraint = imageView.heightAnchor.constraint(equalToConstant: size.dimensions.height)
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heightConstraint?.isActive = true
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widthConstraint = imageView.widthAnchor.constraint(equalToConstant: size.dimensions.width)
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widthConstraint?.isActive = true
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backgroundColor = .clear
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isAccessibilityElement = true
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accessibilityTraits = .image
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}
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open override func reset() {
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super.reset()
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color = .black
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imageView.image = nil
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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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//get the color for the image
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var imageColor = color.value
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//ensure the correct color for white/black colors
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if surface == .dark && color == Color.black {
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imageColor = VDSColor.elementsPrimaryOndark
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} else if surface == .light && color == Color.black {
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imageColor = VDSColor.elementsPrimaryOnlight
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}
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//set the icon dimensions
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var dimensions = size.dimensions
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if let customSize {
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dimensions = .init(width: customSize, height: customSize)
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}
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heightConstraint?.constant = dimensions.height
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widthConstraint?.constant = dimensions.width
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//get the image name
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//set the image
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if let name, let image = getImage(for: name.rawValue) {
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setImage(image: image, imageColor: imageColor)
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} else {
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imageView.image = nil
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}
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}
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public override func updateAccessibilityLabel() {
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}
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private func getImage(for imageName: String) -> UIImage? {
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return BundleManager.shared.image(for: imageName)
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}
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private func setImage(image: UIImage, imageColor: UIColor) {
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imageView.image = image.withTintColor(imageColor)
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}
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}
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