/// <summary>
/// Shows the file browser dialog.
/// </summary>
/// <returns></returns>
/// <exception cref="System.InvalidOperationException"></exception>
public async Task <(bool Result, IList <IFileSystemFile> Files)> ShowFileBrowserDialog(FileSystemBrowserOptions options, CancellationToken token)
{
if (IsOpen)
{
throw new InvalidOperationException(Resources.DialogOpenAlready);
}
var tuple = default((bool Result, IList <IFileSystemFile> Files));
var viewModel = new FileBrowserContentDialogViewModel(_fileSystemViewModel, options);
TitleDetail = string.Empty;
Context = viewModel;
Title = options.Title;
IsCancelVisible = options.CanCancel;
using (Messenger.Subscribe <FileSystemInfoChangedMessage>(FileSystemInfoChanged))
{
AcceptAction = () =>
{
var items = viewModel.FileSystemViewModel.SelectedItems;
tuple = (true, items.Select(p => p as IFileSystemFile).Where(p => p != null).ToList());
};
CancelAction = () =>
{
var items = viewModel.FileSystemViewModel.SelectedItems;
tuple = (false, new List <IFileSystemFile>());
};
await Open(token).ConfigureAwait(false);
}
return(tuple);
}
/// <summary>
/// Shows the folder browser dialog.
/// </summary>
/// <returns></returns>
/// <exception cref="System.InvalidOperationException"></exception>
public async Task <(bool Result, IFileSystemDirectory Directory)> ShowFolderBrowserDialog(FileSystemBrowserOptions options, CancellationToken token)
{
if (IsOpen)
{
throw new InvalidOperationException(Resources.DialogOpenAlready);
}
var tuple = default((bool Result, IFileSystemDirectory Directory));
var viewModel = new FileBrowserContentDialogViewModel(_fileSystemViewModel, options);
TitleDetail = string.Empty;
Context = viewModel;
Title = options.Title;
IsCancelVisible = options.CanCancel;
using (Messenger.Subscribe <FileSystemInfoChangedMessage>(FileSystemInfoChanged))
{
AcceptAction = () =>
{
var items = viewModel.FileSystemViewModel.SelectedItems;
items.Add(viewModel.FileSystemViewModel.SelectedItem);
tuple = (true, items.Distinct().FirstOrDefault() as IFileSystemDirectory); // TODO handle multi select option
};
CancelAction = () =>
{
var items = viewModel.FileSystemViewModel.SelectedItems;
tuple = (false, default(IFileSystemDirectory));
};
await Open(token).ConfigureAwait(false);
}
return(tuple);
}
