private Task LoadFromFile()
{
using (BusyStack.GetToken())
{
var options = new FileSystemBrowserOptions()
{
CanCancel = true,
MultiSelection = false,
Title = _translator.Translate(nameof(Resources.SelectFiles)),
};
return(_dialogViewModel.ShowFileBrowserDialog(options));
}
}
private async Task LoadFromFile(CancellationToken token)
{
using (BusyStack.GetToken())
{
var options = new FileSystemBrowserOptions()
{
CanCancel = true,
MultiSelection = false,
Title = _translator.Translate(nameof(Resources.SelectFiles)),
};
(var Result, var MediaItems) = await _dialogViewModel.ShowMediaItemSelectionDialog(options, token).ConfigureAwait(true);
if (Result)
{
AddRange(MediaItems);
}
}
}
public FolderBrowserContentDialogViewModel(FileSystemViewModel fileSystemViewModel, FileSystemBrowserOptions options)
{
_options = options ?? throw new ArgumentNullException(nameof(options), $"{nameof(options)} {Resources.IsRequired}");
FileSystemViewModel = fileSystemViewModel ?? throw new ArgumentNullException(nameof(fileSystemViewModel), $"{nameof(fileSystemViewModel)} {Resources.IsRequired}");
}
public FileBrowserDialogViewModel(FileSystemViewModel fileSystemViewModel, FileSystemBrowserOptions options)
{
_options = options ?? throw new ArgumentNullException(nameof(options));
FileSystemViewModel = fileSystemViewModel ?? throw new ArgumentNullException(nameof(fileSystemViewModel));
}
/// <summary>
/// Shows the folder browser dialog.
/// </summary>
/// <returns></returns>
/// <exception cref="System.InvalidOperationException"></exception>
public async Task <(DialogResult Result, IFileSystemDirectory Directory)> ShowFolderBrowserDialog(FileSystemBrowserOptions options)
{
if (IsOpen)
{
throw new InvalidOperationException(Resources.DialogOpenAlready);
}
var tuple = default((DialogResult Result, IFileSystemDirectory Directory));
var viewModel = new FileBrowserDialogViewModel(_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 = (DialogResult.OK, items.Distinct().FirstOrDefault() as IFileSystemDirectory);
};
CancelAction = () =>
{
var items = viewModel.FileSystemViewModel.SelectedItems;
tuple = (DialogResult.Cancel, default(IFileSystemDirectory));
};
await Open().ConfigureAwait(false);
}
return(tuple);
}
/// <summary>
/// Shows the file browser dialog.
/// </summary>
/// <returns></returns>
/// <exception cref="System.InvalidOperationException"></exception>
public async Task <(DialogResult Result, IList <IFileSystemFile> Files)> ShowFileBrowserDialog(FileSystemBrowserOptions options)
{
if (IsOpen)
{
throw new InvalidOperationException(Resources.DialogOpenAlready);
}
var tuple = default((DialogResult Result, IList <IFileSystemFile> Files));
var viewModel = new FileBrowserDialogViewModel(_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 = (DialogResult.OK, items.Select(p => p as IFileSystemFile).Where(p => p != null).ToList());
};
CancelAction = () =>
{
var items = viewModel.FileSystemViewModel.SelectedItems;
tuple = (DialogResult.Cancel, new List <IFileSystemFile>());
};
await Open().ConfigureAwait(false);
}
return(tuple);
}
public async Task <(bool Result, ICollection <MediaItem> MediaItems)> ShowMediaItemSelectionDialog(FileSystemBrowserOptions options, CancellationToken token)
{
var mediaItems = new List <MediaItem>();
(var Result, var Files) = await ShowFileBrowserDialog(options, token).ConfigureAwait(true);
if (!Result)
{
return(Result, mediaItems);
}
foreach (var file in Files)
{
// TODO parse the files and generate mediaitems from them
}
return(Result, mediaItems);
}
