public void DownloadFile(NwdPortableDeviceFile file,
string saveToFolderPath)
{
if (!_isConnected)
{
Connect();
}
IPortableDeviceContent content;
this._device.Content(out content);
IPortableDeviceResources resources;
content.Transfer(out resources);
PortableDeviceApiLib.IStream wpdStream;
uint optimalTransferSize = 0;
var property = new _tagpropertykey();
property.fmtid = new Guid(0xE81E79BE, 0x34F0, 0x41BF,
0xB5, 0x3F, 0xF1, 0xA0,
0x6A, 0xE8, 0x78, 0x42);
property.pid = 0;
resources.GetStream(file.Id,
ref property,
0,
ref optimalTransferSize,
out wpdStream);
System.Runtime.InteropServices.ComTypes.IStream sourceStream =
(System.Runtime.InteropServices.ComTypes.IStream)wpdStream;
var filename = Path.GetFileName(file.Name); //uses the name with extension (differs from tutorial version)
FileStream targetStream =
new FileStream(Path.Combine(saveToFolderPath, filename),
FileMode.Create,
FileAccess.Write);
unsafe
{
//TODO: play with this value (bufferSize)
// (I get different entries missing/invalid based on the
// number used, there has to be a connection, probably
// an encoding thing, need more research)
// int bufferSize = 1024;
//int bufferSize = 4096;
int bufferSize = 8192;
var buffer = new byte[bufferSize];
int bytesRead;
do
{
sourceStream.Read(buffer, bufferSize, new IntPtr(&bytesRead));
targetStream.Write(buffer, 0, bytesRead);
targetStream.Flush();
} while (bytesRead > 0);
targetStream.Close();
}
//TODO: LICENSE NOTES
//see comments on: https://cgeers.wordpress.com/2011/08/13/wpd-transferring-content/
Marshal.ReleaseComObject(sourceStream);
Marshal.ReleaseComObject(wpdStream);
Disconnect();
}
private void MenuItemFindToBeRemovedPlayList_Click(object sender, RoutedEventArgs e)
{
//just supporting first attached device for now, can cycle through multiples later
NwdPortableDeviceCollection col = new NwdPortableDeviceCollection();
try
{
col.Refresh();
}
catch (Exception ex)
{
Display.Exception(ex);
}
if (col.Count() > 0)
{
NwdPortableDevice device = col.First();
if (device != null)
{
//if(unprocessedDeletions == null ||
// unprocessedDeletions.Count < 1)
if (unprocessedDeletions.IsEmptyOrNull())
{
toBeRemoved = GetFirstToBeRemovedPlaylist();
if (toBeRemoved == null)
{
MessageBox.Show("Playlist(s) 'to be removed[*]' not found");
}
else
{
MessageBox.Show("found [" + toBeRemoved.Name + "]");
//copy file to local file system
string localDestinationFolder = Configuration.PlaylistsFolder;
device.DownloadFile(toBeRemoved, localDestinationFolder);
string localFilePath =
System.IO.Path.Combine(localDestinationFolder, toBeRemoved.Name);
MessageBox.Show("copied file to [" + localFilePath + "]");
List<string> entries = File.ReadAllLines(localFilePath).ToList();
MessageBox.Show("found " + entries.Count + " entries");
List<NwdUri> lst = new List<NwdUri>();
List<string> invalidPaths = new List<string>();
foreach (string entry in entries)
{
NwdUri newUri = Configuration.NwdPathToNwdUri(entry);
if (newUri != null)
{
lst.Add(newUri);
}
else
{
invalidPaths.Add(entry);
}
}
var pathList = (from entry in invalidPaths
select new
{
Path = entry
}).ToList();
if (pathList.Count > 0)
{
Display.Grid(invalidPaths.Count + " invalid paths skipped", lst, pathList);
}
else
{
Display.Grid("0 invalid paths skipped", lst);
}
var processEntries = (from nwdUri in lst
select new NwdUriProcessEntry(nwdUri)).ToList();
unprocessedDeletions =
new Stack<NwdUriProcessEntry>(processEntries);
}
}
else
{
MessageBox.Show(unprocessedDeletions.Count
+ " unprocessed entries found for ["
+ toBeRemoved.Name + "]");
}
if (unprocessedDeletions != null)
{
List<NwdUriProcessEntry> processed =
new List<NwdUriProcessEntry>();
bool again = true;
string msg = "Enter processing segment size (keep in mind that " +
"caching works better the higher this number is, but the " +
"higher the number, the longer each iteration will obviously " +
"take, find a balance that works for your device)";
while (again && unprocessedDeletions.Count() > 0)
{
int repetitionSegmentSize =
NineWorldsDeep.UI.Prompt.ForInteger(msg);
IEnumerable<NwdUriProcessEntry> currentlyProcessing =
unprocessedDeletions.Pop(repetitionSegmentSize);
Stopwatch watch = Stopwatch.StartNew();
var res = FindByUriCached(currentlyProcessing.ToNwdUris());
watch.Stop(); //just profiling find by uri
foreach (NwdUriProcessEntry pe in currentlyProcessing)
{
if (res[pe.URI].Count > 0)
{
pe.DeviceObject = res[pe.URI].First();
}
pe.Processed = true;
processed.Add(pe);
}
again =
NineWorldsDeep.UI.Prompt.Confirm("Processing took "
+ watch.Elapsed.ToString() +
" milliseconds to complete. Process more entries?");
}
Display.Grid(processed.Count() + " processed / "
+ unprocessedDeletions.Count() + " unprocessed", processed);
if (NineWorldsDeep.UI.Prompt.Confirm("Delete all processed and found files?"))
{
int deletionCount = 0;
foreach (NwdUriProcessEntry pe in processed)
{
if (pe.FoundOnDevice)
{
NwdPortableDeviceObject pdo = pe.DeviceObject;
if (pdo is NwdPortableDeviceFile)
{
try
{
NwdPortableDeviceFile pdf =
(NwdPortableDeviceFile)pdo;
device.DeleteFile(pdf);
deletionCount++;
MessageBox.Show(deletionCount + " files deleted");
}
catch(Exception ex)
{
Display.Exception(ex);
}
}
}
}
if (unprocessedDeletions.Count < 1 && toBeRemoved != null)
{
string confirmMsg =
"No more unprocessed entries for [" +
toBeRemoved.Name + "] delete file?";
if (NineWorldsDeep.UI.Prompt.Confirm(confirmMsg))
{
device.DeleteFile(toBeRemoved);
MessageBox.Show("[" + toBeRemoved.Name + "] deleted.");
unprocessedDeletions = null;
toBeRemoved = null;
}
}
}
}
}
}
else
{
MessageBox.Show("no devices found.");
}
}
public void DeleteFile(NwdPortableDeviceFile file)
{
Connect();
IPortableDeviceContent content;
this._device.Content(out content);
var variant = new tag_inner_PROPVARIANT();
StringToPropVariant(file.Id, out variant);
IPortableDevicePropVariantCollection objectIds =
new PortableDeviceTypesLib.PortableDevicePropVariantCollection()
as IPortableDevicePropVariantCollection;
objectIds.Add(variant);
content.Delete(0, objectIds, null);
Disconnect();
}
