AIKKEY_WPFWin7/AIKKey/Infrastructure/WpfFileDialogService.cs

using AIK.Common.Interface;
using Ookii.Dialogs.Wpf;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;

namespace AIKKey.Infrastructure
{
    public class WpfFileDialogService : IFileDialogService
    {
        public Task<string?> OpenFileAsync(string title = "选择文件")
        {
            return Task.Run(() =>
            {
                var dialog = new VistaOpenFileDialog
                {
                    Title = title,
                    Multiselect = false
                };

                // 必须在 STA 线程（WPF 主线程）运行
                return Application.Current.Dispatcher.Invoke(() =>
                {
                    bool? result = dialog.ShowDialog();
                    return result == true ? dialog.FileName : null;
                });
            });
        }

        public Task<string?> SelectFolderAsync(string description = "请选择文件夹")
        {
            return Task.Run(() =>
            {
                var dialog = new VistaFolderBrowserDialog
                {
                    Description = description,
                    UseDescriptionForTitle = true
                };

                return Application.Current.Dispatcher.Invoke(() =>
                {
                    bool? result = dialog.ShowDialog();
                    return result == true ? dialog.SelectedPath : null;
                });
            });
        }
    }
}