element-x-ios/ElementX/Sources/Screens/MediaUploadPreviewScreen/View/MediaUploadPreviewScreen.swift

114 lines
3.9 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
struct MediaUploadPreviewScreen: View {
@ObservedObject var context: MediaUploadPreviewScreenViewModel.Context
var body: some View {
PreviewView(context: context,
fileURL: context.viewState.url,
title: context.viewState.title)
.id(UUID())
.ignoresSafeArea(edges: .bottom)
.toolbar { toolbar }
.interactiveDismissDisabled()
}
@ToolbarContentBuilder
private var toolbar: some ToolbarContent {
ToolbarItem(placement: .cancellationAction) {
Button { context.send(viewAction: .cancel) } label: {
Text(L10n.actionCancel)
}
}
ToolbarItem(placement: .confirmationAction) {
Button { context.send(viewAction: .send) } label: {
Text(L10n.actionSend)
}
}
}
}
private struct PreviewView: UIViewControllerRepresentable {
let context: MediaUploadPreviewScreenViewModel.Context
let fileURL: URL
let title: String?
func makeUIViewController(context: Context) -> UINavigationController {
let previewController = QLPreviewController()
previewController.dataSource = context.coordinator
previewController.delegate = context.coordinator
return UINavigationController(rootViewController: previewController)
}
func updateUIViewController(_ uiViewController: UINavigationController, context: Context) { }
func makeCoordinator() -> Coordinator {
Coordinator(view: self)
}
class Coordinator: NSObject, QLPreviewControllerDataSource, QLPreviewControllerDelegate {
let view: PreviewView
init(view: PreviewView) {
self.view = view
}
// MARK: - QLPreviewControllerDataSource
func numberOfPreviewItems(in controller: QLPreviewController) -> Int {
1
}
func previewController(_ controller: QLPreviewController, previewItemAt index: Int) -> QLPreviewItem {
PreviewItem(previewItemURL: view.fileURL, previewItemTitle: view.title)
}
// MARK: - QLPreviewControllerDelegate
func previewController(_ controller: QLPreviewController, editingModeFor previewItem: QLPreviewItem) -> QLPreviewItemEditingMode {
.disabled
}
}
}
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 MediaUploadPreviewScreen_Previews: PreviewProvider {
static let viewModel = MediaUploadPreviewScreenViewModel(userIndicatorController: UserIndicatorControllerMock.default,
roomProxy: RoomProxyMock(),
mediaUploadingPreprocessor: MediaUploadingPreprocessor(),
title: nil,
url: URL.picturesDirectory)
static var previews: some View {
MediaUploadPreviewScreen(context: viewModel.context)
}
}