IceCubes/IceCubesApp/App/QuickLookRepresentable.swift

97 lines
2.5 KiB
Swift

import QuickLook
import SwiftUI
import UIKit
extension URL: Identifiable {
public var id: String {
absoluteString
}
}
struct QuickLookPreview: UIViewControllerRepresentable {
let selectedURL: URL
let urls: [URL]
func makeUIViewController(context _: Context) -> UIViewController {
return AppQLPreviewController(selectedURL: selectedURL, urls: urls)
}
func updateUIViewController(
_: UIViewController, context _: Context
) {}
}
class AppQLPreviewController: UIViewController {
let selectedURL: URL
let urls: [URL]
var qlController: QLPreviewController?
init(selectedURL: URL, urls: [URL]) {
self.selectedURL = selectedURL
self.urls = urls
super.init(nibName: nil, bundle: nil)
}
@available(*, unavailable)
required init?(coder _: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
if qlController == nil {
qlController = QLPreviewController()
qlController?.dataSource = self
qlController?.delegate = self
qlController?.currentPreviewItemIndex = urls.firstIndex(of: selectedURL) ?? 0
present(qlController!, animated: true)
}
}
}
extension AppQLPreviewController: QLPreviewControllerDataSource {
func numberOfPreviewItems(in _: QLPreviewController) -> Int {
return urls.count
}
func previewController(_: QLPreviewController, previewItemAt index: Int) -> QLPreviewItem {
return urls[index] as QLPreviewItem
}
}
extension AppQLPreviewController: QLPreviewControllerDelegate {
func previewController(_: QLPreviewController, editingModeFor _: QLPreviewItem) -> QLPreviewItemEditingMode {
.createCopy
}
func previewControllerWillDismiss(_: QLPreviewController) {
dismiss(animated: true)
}
func previewControllerDidDismiss(_: QLPreviewController) {
dismiss(animated: true)
}
}
struct TransparentBackground: UIViewControllerRepresentable {
public func makeUIViewController(context _: Context) -> UIViewController {
return TransparentController()
}
public func updateUIViewController(_: UIViewController, context _: Context) {}
class TransparentController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .clear
}
override func willMove(toParent parent: UIViewController?) {
super.willMove(toParent: parent)
parent?.view?.backgroundColor = .clear
parent?.modalPresentationStyle = .overCurrentContext
}
}
}