Chromely Dialogs

ShellController.cs

using Chromely.Core.Network;
using System;
using System.Threading;
using USS.Tempus.Shell;

namespace TempusChromely
{
  [ControllerProperty(Name = "Shell")]
  public class ShellController : ChromelyController
  {
    public ShellController()
    {
      RegisterRequest("/shell/SelectFileDialog", SelectFileDialog);
      RegisterRequest("/shell/SelectFolderDialog", SelectFolderDialog);
      RegisterRequest("/shell/BrowsePath", BrowsePath);
    }

    #region Handlers
    private IChromelyResponse SelectFileDialog(IChromelyRequest request) => new ChromelyResponse(request.Id) { Data = InvokeSTA(() => SelectFileDialog(request.Parameters["InitialPath"])) };
    private IChromelyResponse SelectFolderDialog(IChromelyRequest request) => new ChromelyResponse(request.Id) { Data = InvokeSTA(() => SelectFolderDialog(request.Parameters["InitialPath"])) };
    private IChromelyResponse BrowsePath(IChromelyRequest request)
    {
      System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(request.Parameters["Path"]) { UseShellExecute = true });
      return new ChromelyResponse(request.Id);
    }
    #endregion

    #region Utilities
    private DialogResponse InvokeSTA(Func<DialogResponse> func)
    {
      DialogResponse result = new(true, "");
      var thread = new Thread(x => result = func());
      thread.SetApartmentState(ApartmentState.STA);
      thread.Start();
      thread.Join();

      return result;
    }

    private DialogResponse SelectFileDialog(string initialPath)
    {
      var dialog = new Ookii.Dialogs.WinForms.VistaOpenFileDialog() { CheckFileExists = false };
      if (initialPath is not null && System.IO.File.Exists(initialPath))
      {
        if (!initialPath.EndsWith('\\'))
          initialPath += '\\';
        dialog.InitialDirectory = initialPath;
      }

      var result = dialog.ShowDialog();

      return new(result == System.Windows.Forms.DialogResult.Cancel, dialog.FileName);
    }


    private DialogResponse SelectFolderDialog(string initialPath)
    {
      var dialog = new Ookii.Dialogs.WinForms.VistaFolderBrowserDialog();
      if (initialPath is not null && System.IO.Directory.Exists(initialPath))
      {
        if (!initialPath.EndsWith('\\'))
          initialPath += '\\';
        dialog.SelectedPath = initialPath;
      }

      var result = dialog.ShowDialog();

      return new(result == System.Windows.Forms.DialogResult.Cancel, dialog.SelectedPath);
    }
    #endregion
  }
}