PDFOffice_Windows_exe/PDF Office/ViewModels/HomePanel/CloudDrive/GoogleDriveManager.cs

using Google.Apis.Auth.OAuth2;
using Google.Apis.Drive.v3;
using Google.Apis.Services;
using Google.Apis.Util.Store;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace PDF_Office.ViewModels.HomePanel.CloudDrive
{
    //多用户UX交互
    public class GoogleDriveManager
    {

        //已登录的用户们
        public List<GoogleDriveUserItem> GoogleDriveUsers = new List<GoogleDriveUserItem>();


        public GoogleDriveManager()
        {
             GoogleDriveStatic.GetFilesPathTemp();
             GoogleDriveStatic.GetCredentialsPath();
        }

        #region   请求身份验证

        /// <summary>
        /// 获取登录过的用户
        /// </summary>
        public async Task<bool> GetHistoryUsers()
        {
            var tuples = await GoogleDriveStatic.GetHistoryService();
            GoogleDriveUsers.Clear();
            foreach (var tuple in tuples)
            {

                if (tuple != null && tuple.Item1 != null && tuple.Item2 != null)
                {
                    AddGoogleDriveUser(tuple);
                }
            }

            if (GoogleDriveUsers.Count > 0)
            {
                return true;
            }
            return false;
        }

        public async void AddGoogleDriveUser(Tuple<DriveService, UserCredential> tuple)
        {
            GoogleDriveUserItem user = new GoogleDriveUserItem();
            user.Service = tuple.Item1;
            user.User.CurrentCredential = tuple.Item2;
            user.User.UserAccount = await user.GetUserAcountAsync();
            GoogleDriveUsers.Add(user);
        }


        #endregion
    }
}