90 lines
2.7 KiB
Swift
90 lines
2.7 KiB
Swift
//
|
|
// Copyright 2022 New Vector Ltd
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
|
|
import QuickLook
|
|
import SwiftUI
|
|
import UIKit
|
|
|
|
struct FilePreviewScreen: View {
|
|
@Environment(\.colorScheme) private var colorScheme
|
|
|
|
var counterColor: Color {
|
|
colorScheme == .light ? .element.secondaryContent : .element.tertiaryContent
|
|
}
|
|
|
|
@ObservedObject var context: FilePreviewViewModel.Context
|
|
|
|
var body: some View {
|
|
PreviewController(fileURL: context.viewState.fileURL, title: context.viewState.title)
|
|
}
|
|
}
|
|
|
|
private struct PreviewController: UIViewControllerRepresentable {
|
|
let fileURL: URL
|
|
let title: String?
|
|
|
|
func makeUIViewController(context: Context) -> UINavigationController {
|
|
let controller = QLPreviewController()
|
|
controller.dataSource = context.coordinator
|
|
|
|
return UINavigationController(rootViewController: controller)
|
|
}
|
|
|
|
func updateUIViewController(_ uiViewController: UINavigationController, context: Context) { }
|
|
|
|
func makeCoordinator() -> Coordinator {
|
|
Coordinator(parent: self)
|
|
}
|
|
|
|
class Coordinator: QLPreviewControllerDataSource {
|
|
let parent: PreviewController
|
|
|
|
init(parent: PreviewController) {
|
|
self.parent = parent
|
|
}
|
|
|
|
func numberOfPreviewItems(in controller: QLPreviewController) -> Int {
|
|
1
|
|
}
|
|
|
|
func previewController(_ controller: QLPreviewController, previewItemAt index: Int) -> QLPreviewItem {
|
|
PreviewItem(previewItemURL: parent.fileURL, previewItemTitle: parent.title)
|
|
}
|
|
}
|
|
}
|
|
|
|
private class PreviewItem: NSObject, QLPreviewItem {
|
|
var previewItemURL: URL?
|
|
var previewItemTitle: String?
|
|
|
|
init(previewItemURL: URL?, previewItemTitle: String?) {
|
|
self.previewItemURL = previewItemURL
|
|
self.previewItemTitle = previewItemTitle
|
|
}
|
|
}
|
|
|
|
// MARK: - Previews
|
|
|
|
struct FilePreview_Previews: PreviewProvider {
|
|
static var previews: some View {
|
|
Group {
|
|
let upgradeViewModel = FilePreviewViewModel(fileURL: URL(staticString: "https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf"))
|
|
FilePreviewScreen(context: upgradeViewModel.context)
|
|
}
|
|
.tint(.element.accent)
|
|
}
|
|
}
|