//
|
// EKColor.swift
|
// SwiftEntryKit
|
//
|
// Created by Daniel on 21/07/2019.
|
// Copyright © 2019 CocoaPods. All rights reserved.
|
//
|
|
import UIKit
|
|
/** A color representation attribute as per user interface style */
|
public struct EKColor: Equatable {
|
|
// MARK: - Properties
|
|
public private(set) var dark: UIColor
|
public private(set) var light: UIColor
|
|
// MARK: - Setup
|
|
public init(light: UIColor, dark: UIColor) {
|
self.light = light
|
self.dark = dark
|
}
|
|
public init(_ unified: UIColor) {
|
self.light = unified
|
self.dark = unified
|
}
|
|
public init(rgb: Int) {
|
dark = UIColor(rgb: rgb)
|
light = UIColor(rgb: rgb)
|
}
|
|
public init(red: Int, green: Int, blue: Int) {
|
assert(red >= 0 && red <= 255, "Invalid red component")
|
assert(green >= 0 && green <= 255, "Invalid green component")
|
assert(blue >= 0 && blue <= 255, "Invalid blue component")
|
let color = UIColor(red: CGFloat(red) / 255.0,
|
green: CGFloat(green) / 255.0,
|
blue: CGFloat(blue) / 255.0,
|
alpha: 1.0)
|
light = color
|
dark = color
|
}
|
|
/** Computes the proper UIColor */
|
public func color(for traits: UITraitCollection,
|
mode: EKAttributes.DisplayMode) -> UIColor {
|
switch mode {
|
case .inferred:
|
if #available(iOS 13, *) {
|
switch traits.userInterfaceStyle {
|
case .light, .unspecified:
|
return light
|
case .dark:
|
return dark
|
@unknown default:
|
return light
|
}
|
} else {
|
return light
|
}
|
case .light:
|
return light
|
case .dark:
|
return dark
|
}
|
}
|
}
|
|
public extension EKColor {
|
|
/// Returns the inverse of `self` (light and dark swapped)
|
var inverted: EKColor {
|
return EKColor(light: dark, dark: light)
|
}
|
|
/** Returns an `EKColor` with the specified alpha component */
|
func with(alpha: CGFloat) -> EKColor {
|
return EKColor(light: light.withAlphaComponent(alpha),
|
dark: dark.withAlphaComponent(alpha))
|
}
|
|
/** White color for all user interface styles */
|
static var white: EKColor {
|
return EKColor(.white)
|
}
|
|
/** Black color for all user interface styles */
|
static var black: EKColor {
|
return EKColor(.black)
|
}
|
|
/** Clear color for all user interface styles */
|
static var clear: EKColor {
|
return EKColor(.clear)
|
}
|
|
/** Color that represents standard background. White for light mode, black for dark modee */
|
static var standardBackground: EKColor {
|
return EKColor(light: .white, dark: .black)
|
}
|
|
/** Color that represents standard content. black for light mode, white for dark mode */
|
static var standardContent: EKColor {
|
return EKColor(light: .black, dark: .white)
|
}
|
}
|
