public override IAsyncOperation <BaseStorageFile> CopyAsync(IStorageFolder destinationFolder, string desiredNewName, NameCollisionOption option)
{
return(AsyncInfo.Run <BaseStorageFile>(async(cancellationToken) =>
{
if (string.IsNullOrEmpty(destinationFolder.Path))
{
throw new NotSupportedException();
}
var destination = IO.Path.Combine(destinationFolder.Path, desiredNewName);
var destFile = new NativeStorageFile(destination, desiredNewName, DateTime.Now);
if (!IsAlternateStream)
{
if (!await Task.Run(() => NativeFileOperationsHelper.CopyFileFromApp(Path, destination, option != NameCollisionOption.ReplaceExisting)))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
else
{
destFile.CreateFile();
using (var inStream = await this.OpenStreamForReadAsync())
using (var outStream = await destFile.OpenStreamForWriteAsync())
{
await inStream.CopyToAsync(outStream);
await outStream.FlushAsync();
}
}
return destFile;
}));
}
public override IAsyncAction RenameAsync(string desiredName, NameCollisionOption option)
{
return(AsyncInfo.Run(async(cancellationToken) =>
{
string destination = IO.Path.Combine(IO.Path.GetDirectoryName(Path), desiredName);
var destFile = new NativeStorageFile(destination, desiredName, DateTime.Now);
if (!IsAlternateStream)
{
if (!await Task.Run(() => NativeFileOperationsHelper.MoveFileFromApp(Path, destination)))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
else
{
destFile.CreateFile();
using (var inStream = await this.OpenStreamForReadAsync())
using (var outStream = await destFile.OpenStreamForWriteAsync())
{
await inStream.CopyToAsync(outStream);
await outStream.FlushAsync();
}
await DeleteAsync();
}
}));
}