106 lines
4.0 KiB
Swift
106 lines
4.0 KiB
Swift
//
|
|
// Copyright 2023 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 PhotosUI
|
|
import SwiftUI
|
|
|
|
enum PhotoLibraryPickerAction {
|
|
case selectFile(URL)
|
|
case cancel
|
|
case error(PhotoLibraryPickerError)
|
|
}
|
|
|
|
enum PhotoLibraryPickerError: Error {
|
|
case failedLoadingFileRepresentation(Error?)
|
|
case failedCopyingFile
|
|
}
|
|
|
|
struct PhotoLibraryPicker: UIViewControllerRepresentable {
|
|
private weak var userIndicatorController: UserIndicatorControllerProtocol?
|
|
private let callback: (PhotoLibraryPickerAction) -> Void
|
|
|
|
init(userIndicatorController: UserIndicatorControllerProtocol?, callback: @escaping (PhotoLibraryPickerAction) -> Void) {
|
|
self.userIndicatorController = userIndicatorController
|
|
self.callback = callback
|
|
}
|
|
|
|
func makeUIViewController(context: Context) -> PHPickerViewController {
|
|
var configuration = PHPickerConfiguration(photoLibrary: .shared())
|
|
configuration.selectionLimit = 1
|
|
|
|
let pickerViewController = PHPickerViewController(configuration: configuration)
|
|
pickerViewController.delegate = context.coordinator
|
|
|
|
return pickerViewController
|
|
}
|
|
|
|
func updateUIViewController(_ uiViewController: PHPickerViewController, context: Context) { }
|
|
|
|
func makeCoordinator() -> Coordinator {
|
|
Coordinator(self)
|
|
}
|
|
|
|
final class Coordinator: NSObject, PHPickerViewControllerDelegate {
|
|
private var photoLibraryPicker: PhotoLibraryPicker
|
|
|
|
init(_ photoLibraryPicker: PhotoLibraryPicker) {
|
|
self.photoLibraryPicker = photoLibraryPicker
|
|
}
|
|
|
|
// MARK: PHPickerViewControllerDelegate
|
|
|
|
private static let loadingIndicatorIdentifier = "PhotoLibraryPickerLoadingIndicator"
|
|
|
|
func picker(_ picker: PHPickerViewController, didFinishPicking results: [PHPickerResult]) {
|
|
guard let provider = results.first?.itemProvider,
|
|
let contentType = provider.preferredContentType else {
|
|
photoLibraryPicker.callback(.cancel)
|
|
return
|
|
}
|
|
|
|
picker.delegate = nil
|
|
|
|
photoLibraryPicker.userIndicatorController?.submitIndicator(UserIndicator(id: Self.loadingIndicatorIdentifier, type: .modal, title: L10n.commonLoading))
|
|
defer {
|
|
photoLibraryPicker.userIndicatorController?.retractIndicatorWithId(Self.loadingIndicatorIdentifier)
|
|
}
|
|
|
|
provider.loadFileRepresentation(forTypeIdentifier: contentType.identifier) { [weak self] url, error in
|
|
guard let url else {
|
|
Task { @MainActor in
|
|
self?.photoLibraryPicker.callback(.error(.failedLoadingFileRepresentation(error)))
|
|
}
|
|
return
|
|
}
|
|
|
|
do {
|
|
let _ = url.startAccessingSecurityScopedResource()
|
|
let newURL = try FileManager.default.copyFileToTemporaryDirectory(file: url)
|
|
url.stopAccessingSecurityScopedResource()
|
|
|
|
Task { @MainActor in
|
|
self?.photoLibraryPicker.callback(.selectFile(newURL))
|
|
}
|
|
} catch {
|
|
Task { @MainActor in
|
|
self?.photoLibraryPicker.callback(.error(.failedCopyingFile))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|