protected override async Task RefreshInternal(CancellationToken token)
{
var info = await Task.Run(() => new DriveInfo(FullName), token);
await Dispatcher.Invoke(() => Set(info));
var isEmpty = await _factory.IsEmpty(this);
if (isEmpty)
{
await Clear(token);
return;
}
var children = await _factory.GetChildren(this, _fileAttributes, _folderAttributes);
if (!IsLoaded)
{
await AddRange(children);
}
else
{
await Dispatcher.Invoke(() => Items.UpdateItems(children, FileSystemViewModelFactoryExtensions.IFileSystemChildComparer, FileSystemViewModelFactoryExtensions.IFileSystemChildMapper));
}
}
public static async Task <IReadOnlyCollection <IFileSystemChild> > GetChildren(this IFileSystemViewModelFactory factory, IFileSystemDirectory parent, IReadOnlyCollection <FileAttributes> fileAttributes, IReadOnlyCollection <FileAttributes> folderAttributes)
{
var canAccess = await factory.CanAccess(parent);
if (!canAccess)
{
return(Enumerable.Empty <IFileSystemChild>().ToList());
}
return(await factory.GetChildren((IFileSystemParent)parent, fileAttributes, folderAttributes));
}