UTM/Platform/iOS/ImagePicker.swift

//
// Copyright © 2020 osy. All rights reserved.
//
// 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 SwiftUI

struct ImagePicker: UIViewControllerRepresentable {
    class Coordinator: NSObject, UINavigationControllerDelegate, UIImagePickerControllerDelegate {
        let parent: ImagePicker

        init(_ parent: ImagePicker) {
            self.parent = parent
        }
        
        func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey: Any]) {
            if let imageURL = info[.imageURL] as? URL {
                parent.onImageSelected(imageURL)
            }
        }
    }
    
    let onImageSelected: (URL?) -> Void
    
    func makeUIViewController(context: Context) -> UIImagePickerController {
        let picker = UIImagePickerController()
        picker.delegate = context.coordinator
        picker.sourceType = .photoLibrary
        return picker
    }

    func updateUIViewController(_ uiViewController: UIImagePickerController, context: Context) {

    }
    
    func makeCoordinator() -> Coordinator {
        Coordinator(self)
    }
}

struct ImagePicker_Previews: PreviewProvider {
    static var previews: some View {
        ImagePicker() { _ in
            
        }
    }
}