//
//  ContentView.swift
//  fileModel
//
//  Created by 陈春杨 on 2022/2/16.
//

import SwiftUI

struct ContentView: View {
    var body: some View {
        Button {
            let path = loadFile()

        } label: {
            HStack {
                Image("upload").resizable().frame(width: 15, height: 15)
                Text("上传文件")
                    .foregroundColor(Color.white)
                    .font(Font.system(size: 14))
            }.frame(width: 106, height: 32)
                .background(Color.red)
        }.buttonStyle(PlainButtonStyle())
            .cornerRadius(4)
            .padding(EdgeInsets(top: 29, leading: 0, bottom: 29, trailing: 0))    }
    // 文件选择
    func loadFile(isFolder: Bool = false, openFinder: String = "", fileTypes: [String] = [String]()) -> String {
        let dialog = NSOpenPanel()
        dialog.title                   = "选择文件"
        dialog.showsResizeIndicator    = true
        dialog.showsHiddenFiles        = false
        dialog.allowsMultipleSelection = false
        dialog.canChooseDirectories = isFolder
        dialog.canChooseFiles = !isFolder
        if !fileTypes.isEmpty {
            dialog.allowedFileTypes = fileTypes
        }
        if !openFinder.isEmpty, let url = URL(string: openFinder) {
            dialog.directoryURL = url
        }
        if dialog.runModal() == .OK, let path = dialog.url?.path {
            return path
        } else {
            return ""
        }
    }

}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}