/
View.swift
1157 lines (1065 loc) · 39.9 KB
/
View.swift
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#if os(iOS) || os(macOS) || os(tvOS)
#if os(macOS)
import Cocoa
#endif
import SceneKit
import SpriteKit
#if os(iOS) || os(tvOS)
import UIKit
#endif
#if os(iOS) || os(macOS)
import WebKit
#endif
#if os(iOS) || os(tvOS)
public struct ViewImageConfig {
public enum Orientation {
case landscape
case portrait
}
public enum TabletOrientation {
public enum PortraitSplits {
case oneThird
case twoThirds
case full
}
public enum LandscapeSplits {
case oneThird
case oneHalf
case twoThirds
case full
}
case landscape(splitView: LandscapeSplits)
case portrait(splitView: PortraitSplits)
}
public var safeArea: UIEdgeInsets
public var size: CGSize?
public var traits: UITraitCollection
public init(
safeArea: UIEdgeInsets = .zero,
size: CGSize? = nil,
traits: UITraitCollection = .init()
) {
self.safeArea = safeArea
self.size = size
self.traits = traits
}
#if os(iOS)
public static let iPhoneSe = ViewImageConfig.iPhoneSe(.portrait)
public static func iPhoneSe(_ orientation: Orientation) -> ViewImageConfig {
let safeArea: UIEdgeInsets
let size: CGSize
switch orientation {
case .landscape:
safeArea = .zero
size = .init(width: 568, height: 320)
case .portrait:
safeArea = .init(top: 20, left: 0, bottom: 0, right: 0)
size = .init(width: 320, height: 568)
}
return .init(safeArea: safeArea, size: size, traits: .iPhoneSe(orientation))
}
public static let iPhone8 = ViewImageConfig.iPhone8(.portrait)
public static func iPhone8(_ orientation: Orientation) -> ViewImageConfig {
let safeArea: UIEdgeInsets
let size: CGSize
switch orientation {
case .landscape:
safeArea = .zero
size = .init(width: 667, height: 375)
case .portrait:
safeArea = .init(top: 20, left: 0, bottom: 0, right: 0)
size = .init(width: 375, height: 667)
}
return .init(safeArea: safeArea, size: size, traits: .iPhone8(orientation))
}
public static let iPhone8Plus = ViewImageConfig.iPhone8Plus(.portrait)
public static func iPhone8Plus(_ orientation: Orientation) -> ViewImageConfig {
let safeArea: UIEdgeInsets
let size: CGSize
switch orientation {
case .landscape:
safeArea = .zero
size = .init(width: 736, height: 414)
case .portrait:
safeArea = .init(top: 20, left: 0, bottom: 0, right: 0)
size = .init(width: 414, height: 736)
}
return .init(safeArea: safeArea, size: size, traits: .iPhone8Plus(orientation))
}
public static let iPhoneX = ViewImageConfig.iPhoneX(.portrait)
public static func iPhoneX(_ orientation: Orientation) -> ViewImageConfig {
let safeArea: UIEdgeInsets
let size: CGSize
switch orientation {
case .landscape:
safeArea = .init(top: 0, left: 44, bottom: 24, right: 44)
size = .init(width: 812, height: 375)
case .portrait:
safeArea = .init(top: 44, left: 0, bottom: 34, right: 0)
size = .init(width: 375, height: 812)
}
return .init(safeArea: safeArea, size: size, traits: .iPhoneX(orientation))
}
public static let iPhoneXsMax = ViewImageConfig.iPhoneXsMax(.portrait)
public static func iPhoneXsMax(_ orientation: Orientation) -> ViewImageConfig {
let safeArea: UIEdgeInsets
let size: CGSize
switch orientation {
case .landscape:
safeArea = .init(top: 0, left: 44, bottom: 24, right: 44)
size = .init(width: 896, height: 414)
case .portrait:
safeArea = .init(top: 44, left: 0, bottom: 34, right: 0)
size = .init(width: 414, height: 896)
}
return .init(safeArea: safeArea, size: size, traits: .iPhoneXsMax(orientation))
}
@available(iOS 11.0, *)
public static let iPhoneXr = ViewImageConfig.iPhoneXr(.portrait)
@available(iOS 11.0, *)
public static func iPhoneXr(_ orientation: Orientation) -> ViewImageConfig {
let safeArea: UIEdgeInsets
let size: CGSize
switch orientation {
case .landscape:
safeArea = .init(top: 0, left: 44, bottom: 24, right: 44)
size = .init(width: 896, height: 414)
case .portrait:
safeArea = .init(top: 44, left: 0, bottom: 34, right: 0)
size = .init(width: 414, height: 896)
}
return .init(safeArea: safeArea, size: size, traits: .iPhoneXr(orientation))
}
public static let iPhone12 = ViewImageConfig.iPhone12(.portrait)
public static func iPhone12(_ orientation: Orientation) -> ViewImageConfig {
let safeArea: UIEdgeInsets
let size: CGSize
switch orientation {
case .landscape:
safeArea = .init(top: 0, left: 47, bottom: 21, right: 47)
size = .init(width: 844, height: 390)
case .portrait:
safeArea = .init(top: 47, left: 0, bottom: 34, right: 0)
size = .init(width: 390, height: 844)
}
return .init(safeArea: safeArea, size: size, traits: .iPhone12(orientation))
}
public static let iPhone12Pro = ViewImageConfig.iPhone12Pro(.portrait)
public static func iPhone12Pro(_ orientation: Orientation) -> ViewImageConfig {
.iPhone12(orientation)
}
public static let iPhone12ProMax = ViewImageConfig.iPhone12ProMax(.portrait)
public static func iPhone12ProMax(_ orientation: Orientation) -> ViewImageConfig {
let safeArea: UIEdgeInsets
let size: CGSize
switch orientation {
case .landscape:
safeArea = .init(top: 0, left: 47, bottom: 21, right: 47)
size = .init(width: 926, height: 428)
case .portrait:
safeArea = .init(top: 47, left: 0, bottom: 34, right: 0)
size = .init(width: 428, height: 926)
}
return .init(safeArea: safeArea, size: size, traits: .iPhone12ProMax(orientation))
}
public static let iPhone13 = ViewImageConfig.iPhone13(.portrait)
public static func iPhone13(_ orientation: Orientation) -> ViewImageConfig {
let safeArea: UIEdgeInsets
let size: CGSize
switch orientation {
case .landscape:
safeArea = .init(top: 0, left: 47, bottom: 21, right: 47)
size = .init(width: 844, height: 390)
case .portrait:
safeArea = .init(top: 47, left: 0, bottom: 34, right: 0)
size = .init(width: 390, height: 844)
}
return .init(
safeArea: safeArea, size: size, traits: UITraitCollection.iPhone13(orientation))
}
public static let iPhone13Mini = ViewImageConfig.iPhone13Mini(.portrait)
public static func iPhone13Mini(_ orientation: Orientation) -> ViewImageConfig {
let safeArea: UIEdgeInsets
let size: CGSize
switch orientation {
case .landscape:
safeArea = .init(top: 0, left: 50, bottom: 21, right: 50)
size = .init(width: 812, height: 375)
case .portrait:
safeArea = .init(top: 50, left: 0, bottom: 34, right: 0)
size = .init(width: 375, height: 812)
}
return .init(safeArea: safeArea, size: size, traits: .iPhone13(orientation))
}
public static let iPhone13Pro = ViewImageConfig.iPhone13Pro(.portrait)
public static func iPhone13Pro(_ orientation: Orientation) -> ViewImageConfig {
.iPhone13(orientation)
}
public static let iPhone13ProMax = ViewImageConfig.iPhone13ProMax(.portrait)
public static func iPhone13ProMax(_ orientation: Orientation) -> ViewImageConfig {
let safeArea: UIEdgeInsets
let size: CGSize
switch orientation {
case .landscape:
safeArea = .init(top: 0, left: 47, bottom: 21, right: 47)
size = .init(width: 926, height: 428)
case .portrait:
safeArea = .init(top: 47, left: 0, bottom: 34, right: 0)
size = .init(width: 428, height: 926)
}
return .init(safeArea: safeArea, size: size, traits: .iPhone13ProMax(orientation))
}
public static let iPadMini = ViewImageConfig.iPadMini(.landscape)
public static func iPadMini(_ orientation: Orientation) -> ViewImageConfig {
switch orientation {
case .landscape:
return ViewImageConfig.iPadMini(.landscape(splitView: .full))
case .portrait:
return ViewImageConfig.iPadMini(.portrait(splitView: .full))
}
}
public static func iPadMini(_ orientation: TabletOrientation) -> ViewImageConfig {
let size: CGSize
let traits: UITraitCollection
switch orientation {
case .landscape(let splitView):
switch splitView {
case .oneThird:
size = .init(width: 320, height: 768)
traits = .iPadMini_Compact_SplitView
case .oneHalf:
size = .init(width: 507, height: 768)
traits = .iPadMini_Compact_SplitView
case .twoThirds:
size = .init(width: 694, height: 768)
traits = .iPadMini
case .full:
size = .init(width: 1024, height: 768)
traits = .iPadMini
}
case .portrait(let splitView):
switch splitView {
case .oneThird:
size = .init(width: 320, height: 1024)
traits = .iPadMini_Compact_SplitView
case .twoThirds:
size = .init(width: 438, height: 1024)
traits = .iPadMini_Compact_SplitView
case .full:
size = .init(width: 768, height: 1024)
traits = .iPadMini
}
}
return .init(
safeArea: .init(top: 20, left: 0, bottom: 0, right: 0), size: size, traits: traits)
}
public static let iPad9_7 = iPadMini
public static func iPad9_7(_ orientation: Orientation) -> ViewImageConfig {
return iPadMini(orientation)
}
public static func iPad9_7(_ orientation: TabletOrientation) -> ViewImageConfig {
return iPadMini(orientation)
}
public static let iPad10_2 = ViewImageConfig.iPad10_2(.landscape)
public static func iPad10_2(_ orientation: Orientation) -> ViewImageConfig {
switch orientation {
case .landscape:
return ViewImageConfig.iPad10_2(.landscape(splitView: .full))
case .portrait:
return ViewImageConfig.iPad10_2(.portrait(splitView: .full))
}
}
public static func iPad10_2(_ orientation: TabletOrientation) -> ViewImageConfig {
let size: CGSize
let traits: UITraitCollection
switch orientation {
case .landscape(let splitView):
switch splitView {
case .oneThird:
size = .init(width: 320, height: 810)
traits = .iPad10_2_Compact_SplitView
case .oneHalf:
size = .init(width: 535, height: 810)
traits = .iPad10_2_Compact_SplitView
case .twoThirds:
size = .init(width: 750, height: 810)
traits = .iPad10_2
case .full:
size = .init(width: 1080, height: 810)
traits = .iPad10_2
}
case .portrait(let splitView):
switch splitView {
case .oneThird:
size = .init(width: 320, height: 1080)
traits = .iPad10_2_Compact_SplitView
case .twoThirds:
size = .init(width: 480, height: 1080)
traits = .iPad10_2_Compact_SplitView
case .full:
size = .init(width: 810, height: 1080)
traits = .iPad10_2
}
}
return .init(
safeArea: .init(top: 20, left: 0, bottom: 0, right: 0), size: size, traits: traits)
}
public static let iPadPro10_5 = ViewImageConfig.iPadPro10_5(.landscape)
public static func iPadPro10_5(_ orientation: Orientation) -> ViewImageConfig {
switch orientation {
case .landscape:
return ViewImageConfig.iPadPro10_5(.landscape(splitView: .full))
case .portrait:
return ViewImageConfig.iPadPro10_5(.portrait(splitView: .full))
}
}
public static func iPadPro10_5(_ orientation: TabletOrientation) -> ViewImageConfig {
let size: CGSize
let traits: UITraitCollection
switch orientation {
case .landscape(let splitView):
switch splitView {
case .oneThird:
size = .init(width: 320, height: 834)
traits = .iPadPro10_5_Compact_SplitView
case .oneHalf:
size = .init(width: 551, height: 834)
traits = .iPadPro10_5_Compact_SplitView
case .twoThirds:
size = .init(width: 782, height: 834)
traits = .iPadPro10_5
case .full:
size = .init(width: 1112, height: 834)
traits = .iPadPro10_5
}
case .portrait(let splitView):
switch splitView {
case .oneThird:
size = .init(width: 320, height: 1112)
traits = .iPadPro10_5_Compact_SplitView
case .twoThirds:
size = .init(width: 504, height: 1112)
traits = .iPadPro10_5_Compact_SplitView
case .full:
size = .init(width: 834, height: 1112)
traits = .iPadPro10_5
}
}
return .init(
safeArea: .init(top: 20, left: 0, bottom: 0, right: 0), size: size, traits: traits)
}
public static let iPadPro11 = ViewImageConfig.iPadPro11(.landscape)
public static func iPadPro11(_ orientation: Orientation) -> ViewImageConfig {
switch orientation {
case .landscape:
return ViewImageConfig.iPadPro11(.landscape(splitView: .full))
case .portrait:
return ViewImageConfig.iPadPro11(.portrait(splitView: .full))
}
}
public static func iPadPro11(_ orientation: TabletOrientation) -> ViewImageConfig {
let size: CGSize
let traits: UITraitCollection
switch orientation {
case .landscape(let splitView):
switch splitView {
case .oneThird:
size = .init(width: 375, height: 834)
traits = .iPadPro11_Compact_SplitView
case .oneHalf:
size = .init(width: 592, height: 834)
traits = .iPadPro11_Compact_SplitView
case .twoThirds:
size = .init(width: 809, height: 834)
traits = .iPadPro11
case .full:
size = .init(width: 1194, height: 834)
traits = .iPadPro11
}
case .portrait(let splitView):
switch splitView {
case .oneThird:
size = .init(width: 320, height: 1194)
traits = .iPadPro11_Compact_SplitView
case .twoThirds:
size = .init(width: 504, height: 1194)
traits = .iPadPro11_Compact_SplitView
case .full:
size = .init(width: 834, height: 1194)
traits = .iPadPro11
}
}
return .init(
safeArea: .init(top: 24, left: 0, bottom: 20, right: 0), size: size, traits: traits)
}
public static let iPadPro12_9 = ViewImageConfig.iPadPro12_9(.landscape)
public static func iPadPro12_9(_ orientation: Orientation) -> ViewImageConfig {
switch orientation {
case .landscape:
return ViewImageConfig.iPadPro12_9(.landscape(splitView: .full))
case .portrait:
return ViewImageConfig.iPadPro12_9(.portrait(splitView: .full))
}
}
public static func iPadPro12_9(_ orientation: TabletOrientation) -> ViewImageConfig {
let size: CGSize
let traits: UITraitCollection
switch orientation {
case .landscape(let splitView):
switch splitView {
case .oneThird:
size = .init(width: 375, height: 1024)
traits = .iPadPro12_9_Compact_SplitView
case .oneHalf:
size = .init(width: 678, height: 1024)
traits = .iPadPro12_9
case .twoThirds:
size = .init(width: 981, height: 1024)
traits = .iPadPro12_9
case .full:
size = .init(width: 1366, height: 1024)
traits = .iPadPro12_9
}
case .portrait(let splitView):
switch splitView {
case .oneThird:
size = .init(width: 375, height: 1366)
traits = .iPadPro12_9_Compact_SplitView
case .twoThirds:
size = .init(width: 639, height: 1366)
traits = .iPadPro12_9_Compact_SplitView
case .full:
size = .init(width: 1024, height: 1366)
traits = .iPadPro12_9
}
}
return .init(
safeArea: .init(top: 20, left: 0, bottom: 0, right: 0), size: size, traits: traits)
}
#elseif os(tvOS)
public static let tv = ViewImageConfig(
safeArea: .init(top: 60, left: 90, bottom: 60, right: 90),
size: .init(width: 1920, height: 1080),
traits: .init()
)
public static let tv4K = ViewImageConfig(
safeArea: .init(top: 120, left: 180, bottom: 120, right: 180),
size: .init(width: 3840, height: 2160),
traits: .init()
)
#endif
}
extension UITraitCollection {
#if os(iOS)
public static func iPhoneSe(_ orientation: ViewImageConfig.Orientation)
-> UITraitCollection
{
let base: [UITraitCollection] = [
.init(forceTouchCapability: .available),
.init(layoutDirection: .leftToRight),
.init(preferredContentSizeCategory: .medium),
.init(userInterfaceIdiom: .phone),
]
switch orientation {
case .landscape:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .compact),
.init(verticalSizeClass: .compact),
]
)
case .portrait:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .compact),
.init(verticalSizeClass: .regular),
]
)
}
}
public static func iPhone8(_ orientation: ViewImageConfig.Orientation)
-> UITraitCollection
{
let base: [UITraitCollection] = [
.init(forceTouchCapability: .available),
.init(layoutDirection: .leftToRight),
.init(preferredContentSizeCategory: .medium),
.init(userInterfaceIdiom: .phone),
]
switch orientation {
case .landscape:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .compact),
.init(verticalSizeClass: .compact),
]
)
case .portrait:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .compact),
.init(verticalSizeClass: .regular),
]
)
}
}
public static func iPhone8Plus(_ orientation: ViewImageConfig.Orientation)
-> UITraitCollection
{
let base: [UITraitCollection] = [
.init(forceTouchCapability: .available),
.init(layoutDirection: .leftToRight),
.init(preferredContentSizeCategory: .medium),
.init(userInterfaceIdiom: .phone),
]
switch orientation {
case .landscape:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .regular),
.init(verticalSizeClass: .compact),
]
)
case .portrait:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .compact),
.init(verticalSizeClass: .regular),
]
)
}
}
public static func iPhoneX(_ orientation: ViewImageConfig.Orientation)
-> UITraitCollection
{
let base: [UITraitCollection] = [
.init(forceTouchCapability: .available),
.init(layoutDirection: .leftToRight),
.init(preferredContentSizeCategory: .medium),
.init(userInterfaceIdiom: .phone),
]
switch orientation {
case .landscape:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .compact),
.init(verticalSizeClass: .compact),
]
)
case .portrait:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .compact),
.init(verticalSizeClass: .regular),
]
)
}
}
public static func iPhoneXr(_ orientation: ViewImageConfig.Orientation)
-> UITraitCollection
{
let base: [UITraitCollection] = [
.init(forceTouchCapability: .unavailable),
.init(layoutDirection: .leftToRight),
.init(preferredContentSizeCategory: .medium),
.init(userInterfaceIdiom: .phone),
]
switch orientation {
case .landscape:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .regular),
.init(verticalSizeClass: .compact),
]
)
case .portrait:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .compact),
.init(verticalSizeClass: .regular),
]
)
}
}
public static func iPhoneXsMax(_ orientation: ViewImageConfig.Orientation)
-> UITraitCollection
{
let base: [UITraitCollection] = [
.init(forceTouchCapability: .available),
.init(layoutDirection: .leftToRight),
.init(preferredContentSizeCategory: .medium),
.init(userInterfaceIdiom: .phone),
]
switch orientation {
case .landscape:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .regular),
.init(verticalSizeClass: .compact),
]
)
case .portrait:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .compact),
.init(verticalSizeClass: .regular),
]
)
}
}
public static func iPhone12(_ orientation: ViewImageConfig.Orientation)
-> UITraitCollection
{
let base: [UITraitCollection] = [
.init(forceTouchCapability: .available),
.init(layoutDirection: .leftToRight),
.init(preferredContentSizeCategory: .medium),
.init(userInterfaceIdiom: .phone),
]
switch orientation {
case .landscape:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .compact),
.init(verticalSizeClass: .compact),
]
)
case .portrait:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .compact),
.init(verticalSizeClass: .regular),
]
)
}
}
public static func iPhone12ProMax(_ orientation: ViewImageConfig.Orientation)
-> UITraitCollection
{
let base: [UITraitCollection] = [
.init(forceTouchCapability: .available),
.init(layoutDirection: .leftToRight),
.init(preferredContentSizeCategory: .medium),
.init(userInterfaceIdiom: .phone),
]
switch orientation {
case .landscape:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .regular),
.init(verticalSizeClass: .compact),
]
)
case .portrait:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .compact),
.init(verticalSizeClass: .regular),
]
)
}
}
public static func iPhone13(_ orientation: ViewImageConfig.Orientation) -> UITraitCollection
{
let base: [UITraitCollection] = [
.init(forceTouchCapability: .available),
.init(layoutDirection: .leftToRight),
.init(preferredContentSizeCategory: .medium),
.init(userInterfaceIdiom: .phone),
]
switch orientation {
case .landscape:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .compact),
.init(verticalSizeClass: .compact),
]
)
case .portrait:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .compact),
.init(verticalSizeClass: .regular),
]
)
}
}
public static func iPhone13ProMax(_ orientation: ViewImageConfig.Orientation)
-> UITraitCollection
{
let base: [UITraitCollection] = [
.init(forceTouchCapability: .available),
.init(layoutDirection: .leftToRight),
.init(preferredContentSizeCategory: .medium),
.init(userInterfaceIdiom: .phone),
]
switch orientation {
case .landscape:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .regular),
.init(verticalSizeClass: .compact),
]
)
case .portrait:
return .init(
traitsFrom: base + [
.init(horizontalSizeClass: .compact),
.init(verticalSizeClass: .regular),
]
)
}
}
public static let iPadMini = iPad
public static let iPadMini_Compact_SplitView = iPadCompactSplitView
public static let iPad9_7 = iPad
public static let iPad9_7_Compact_SplitView = iPadCompactSplitView
public static let iPad10_2 = iPad
public static let iPad10_2_Compact_SplitView = iPadCompactSplitView
public static let iPadPro10_5 = iPad
public static let iPadPro10_5_Compact_SplitView = iPadCompactSplitView
public static let iPadPro11 = iPad
public static let iPadPro11_Compact_SplitView = iPadCompactSplitView
public static let iPadPro12_9 = iPad
public static let iPadPro12_9_Compact_SplitView = iPadCompactSplitView
private static let iPad = UITraitCollection(
traitsFrom: [
// .init(displayScale: 2),
.init(horizontalSizeClass: .regular),
.init(verticalSizeClass: .regular),
.init(userInterfaceIdiom: .pad),
]
)
private static let iPadCompactSplitView = UITraitCollection(
traitsFrom: [
.init(horizontalSizeClass: .compact),
.init(verticalSizeClass: .regular),
.init(userInterfaceIdiom: .pad),
]
)
#elseif os(tvOS)
// TODO
#endif
}
#endif
func addImagesForRenderedViews(_ view: View) -> [Async<View>] {
return view.snapshot
.map { async in
[
Async { callback in
async.run { image in
let imageView = ImageView()
imageView.image = image
imageView.frame = view.frame
#if os(macOS)
view.superview?.addSubview(imageView, positioned: .above, relativeTo: view)
#elseif os(iOS) || os(tvOS)
view.superview?.insertSubview(imageView, aboveSubview: view)
#endif
callback(imageView)
}
}
]
}
?? view.subviews.flatMap(addImagesForRenderedViews)
}
extension View {
var snapshot: Async<Image>? {
func inWindow<T>(_ perform: () -> T) -> T {
#if os(macOS)
let superview = self.superview
defer { superview?.addSubview(self) }
let window = ScaledWindow()
window.contentView = NSView()
window.contentView?.addSubview(self)
window.makeKey()
#endif
return perform()
}
if let scnView = self as? SCNView {
return Async(value: inWindow { scnView.snapshot() })
} else if let skView = self as? SKView {
if #available(macOS 10.11, *) {
let cgImage = inWindow { skView.texture(from: skView.scene!)!.cgImage() }
#if os(macOS)
let image = Image(cgImage: cgImage, size: skView.bounds.size)
#elseif os(iOS) || os(tvOS)
let image = Image(cgImage: cgImage)
#endif
return Async(value: image)
} else {
fatalError("Taking SKView snapshots requires macOS 10.11 or greater")
}
}
#if os(iOS) || os(macOS)
if let wkWebView = self as? WKWebView {
return Async<Image> { callback in
let work = {
if #available(iOS 11.0, macOS 10.13, *) {
inWindow {
guard wkWebView.frame.width != 0, wkWebView.frame.height != 0 else {
callback(Image())
return
}
let configuration = WKSnapshotConfiguration()
if #available(iOS 13, macOS 10.15, *) {
configuration.afterScreenUpdates = false
}
wkWebView.takeSnapshot(with: configuration) { image, _ in
callback(image!)
}
}
} else {
#if os(iOS)
fatalError("Taking WKWebView snapshots requires iOS 11.0 or greater")
#elseif os(macOS)
fatalError("Taking WKWebView snapshots requires macOS 10.13 or greater")
#endif
}
}
if wkWebView.isLoading {
var subscription: NSKeyValueObservation?
subscription = wkWebView.observe(\.isLoading, options: [.initial, .new]) {
(webview, change) in
subscription?.invalidate()
subscription = nil
if change.newValue == false {
work()
}
}
} else {
work()
}
}
}
#endif
return nil
}
#if os(iOS) || os(tvOS)
func asImage() -> Image {
let renderer = UIGraphicsImageRenderer(bounds: bounds)
return renderer.image { rendererContext in
layer.render(in: rendererContext.cgContext)
}
}
#endif
}
#if os(iOS) || os(tvOS)
extension UIApplication {
static var sharedIfAvailable: UIApplication? {
let sharedSelector = NSSelectorFromString("sharedApplication")
guard UIApplication.responds(to: sharedSelector) else {
return nil
}
let shared = UIApplication.perform(sharedSelector)
return shared?.takeUnretainedValue() as! UIApplication?
}
}
func prepareView(
config: ViewImageConfig,
drawHierarchyInKeyWindow: Bool,
traits: UITraitCollection,
view: UIView,
viewController: UIViewController
) -> () -> Void {
let size = config.size ?? viewController.view.frame.size
view.frame.size = size
if view != viewController.view {
viewController.view.bounds = view.bounds
viewController.view.addSubview(view)
}
let traits = UITraitCollection(traitsFrom: [config.traits, traits])
let window: UIWindow
if drawHierarchyInKeyWindow {
guard let keyWindow = getKeyWindow() else {
fatalError("'drawHierarchyInKeyWindow' requires tests to be run in a host application")
}
window = keyWindow
window.frame.size = size
} else {
window = Window(
config: .init(safeArea: config.safeArea, size: config.size ?? size, traits: traits),
viewController: viewController
)
}
let dispose = add(traits: traits, viewController: viewController, to: window)
if size.width == 0 || size.height == 0 {
// Try to call sizeToFit() if the view still has invalid size
view.sizeToFit()
view.setNeedsLayout()
view.layoutIfNeeded()
}
return dispose
}
func snapshotView(
config: ViewImageConfig,
drawHierarchyInKeyWindow: Bool,
traits: UITraitCollection,
view: UIView,
viewController: UIViewController
)
-> Async<UIImage>
{
let initialFrame = view.frame
let dispose = prepareView(
config: config,
drawHierarchyInKeyWindow: drawHierarchyInKeyWindow,
traits: traits,
view: view,
viewController: viewController
)
// NB: Avoid safe area influence.
if config.safeArea == .zero { view.frame.origin = .init(x: offscreen, y: offscreen) }
return
(view.snapshot
?? Async { callback in
addImagesForRenderedViews(view).sequence().run { views in
callback(
renderer(bounds: view.bounds, for: traits).image { ctx in
if drawHierarchyInKeyWindow {
view.drawHierarchy(in: view.bounds, afterScreenUpdates: true)
} else {
view.layer.render(in: ctx.cgContext)
}
}
)