d154b7fe70
* Use QL previews for video and present full screen. * Use URL(staticString:) in more places. * Fix DesignKit issues.
100 lines
3.1 KiB
Swift
100 lines
3.1 KiB
Swift
//
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// Copyright 2022 New Vector Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import QuickLook
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import SwiftUI
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import UIKit
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struct FilePreviewScreen: View {
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@ObservedObject var context: FilePreviewViewModel.Context
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var body: some View {
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PreviewView(context: context,
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fileURL: context.viewState.fileURL,
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title: context.viewState.title)
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.ignoresSafeArea()
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}
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}
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private struct PreviewView: UIViewControllerRepresentable {
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let context: FilePreviewViewModel.Context
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let fileURL: URL
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let title: String?
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func makeUIViewController(context: Context) -> UINavigationController {
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let controller = QLPreviewController()
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controller.dataSource = context.coordinator
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let doneButton = UIBarButtonItem(title: "Done",
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style: .done,
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target: context.coordinator,
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action: #selector(Coordinator.done))
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controller.navigationItem.rightBarButtonItem = doneButton
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return UINavigationController(rootViewController: controller)
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}
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func updateUIViewController(_ uiViewController: UINavigationController, context: Context) { }
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func makeCoordinator() -> Coordinator {
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Coordinator(view: self)
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}
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class Coordinator: NSObject, QLPreviewControllerDataSource {
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let view: PreviewView
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init(view: PreviewView) {
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self.view = view
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}
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@objc func done() {
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Task { await view.context.send(viewAction: .cancel) }
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}
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// MARK: - QLPreviewControllerDataSource
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func numberOfPreviewItems(in controller: QLPreviewController) -> Int {
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1
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}
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func previewController(_ controller: QLPreviewController, previewItemAt index: Int) -> QLPreviewItem {
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PreviewItem(previewItemURL: view.fileURL, previewItemTitle: view.title)
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}
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}
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}
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private class PreviewItem: NSObject, QLPreviewItem {
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var previewItemURL: URL?
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var previewItemTitle: String?
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init(previewItemURL: URL?, previewItemTitle: String?) {
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self.previewItemURL = previewItemURL
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self.previewItemTitle = previewItemTitle
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}
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}
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// MARK: - Previews
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struct FilePreview_Previews: PreviewProvider {
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static var previews: some View {
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Group {
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let upgradeViewModel = FilePreviewViewModel(fileURL: URL(staticString: "https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf"))
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FilePreviewScreen(context: upgradeViewModel.context)
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}
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.tint(.element.accent)
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}
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}
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