private void Retrieve(NwdPortableDevice device,
NwdPortableDeviceFolder folder,
ref NwdUri uri,
ref MultiMap<string, NwdPortableDeviceObject> found)
{
folder.Refresh(device);
string nodeName = uri.PopNodeName();
if (found.ContainsKey(uri.CurrentTraversalUri))
{
//used cached lookup
foreach (NwdPortableDeviceObject pdo in found[uri.CurrentTraversalUri])
{
ProcessPdo(device, pdo, ref uri, ref found);
}
}
else
{
//use standard lookup
if (folder.Files != null)
{
foreach (NwdPortableDeviceObject pdo in folder.Files)
{
if (NwdUri.MatchNodeName(nodeName, pdo.Name))
{
ProcessPdo(device, pdo, ref uri, ref found);
}
}
}
}
}
private void Retrieve(NwdPortableDevice device,
NwdPortableDeviceFolder folder,
ref NwdUri uri,
ref List<NwdPortableDeviceObject> found)
{
folder.Refresh(device);
string nodeName = uri.PopNodeName();
if (folder.Files != null)
{
foreach (NwdPortableDeviceObject pdo in folder.Files)
{
if (NwdUri.MatchNodeName(nodeName, pdo.Name))
{
if (uri.HasNodeKeysInStack())
{
if (pdo is NwdPortableDeviceFolder)
{
NwdPortableDeviceFolder nextFolder =
(NwdPortableDeviceFolder)pdo;
//uri has one level popped, pass the modified uri and
//the newly found folder to the next level of recursion
Retrieve(device, nextFolder, ref uri, ref found);
}
else
{
//bad key (found name but not a folder and keystack isn't empty, so just return)
//do nothing
}
}
else
{
//finished
found.Add(pdo);
}
}
}
}
}
private NwdPortableDeviceFolder GetRootFolder()
{
var root = new NwdPortableDeviceFolder("DEVICE", "DEVICE");
IPortableDeviceContent content;
this._device.Content(out content);
GetChildren(ref content, root);
return root;
}
/// <summary>
/// this is just PortableDevice.EnumerateContents() without the recursion
/// </summary>
/// <param name="content"></param>
/// <param name="parent"></param>
private static void GetChildren(ref IPortableDeviceContent content,
NwdPortableDeviceFolder parent)
{
// Get the properties of the object
IPortableDeviceProperties properties;
content.Properties(out properties);
// Enumerate the items contained by the current object
IEnumPortableDeviceObjectIDs objectIds;
content.EnumObjects(0, parent.Id, null, out objectIds);
uint fetched = 0;
do
{
string objectId;
objectIds.Next(1, out objectId, ref fetched);
if (fetched > 0)
{
var currentObject = WrapObject(properties, objectId);
parent.Files.Add(currentObject);
}
} while (fetched > 0);
}
public void Refresh()
{
Connect();
//get all properties
this.FriendlyName = base.FriendlyName;
this.Model = base.Model;
this.DeviceType = base.DeviceType;
this.RootFolder = GetRootFolder();
Disconnect();
}
public void FillFolder(NwdPortableDeviceFolder folder)
{
if (!_isConnected)
{
Connect();
}
IPortableDeviceContent content;
this._device.Content(out content);
GetChildren(ref content, folder);
Disconnect();
}
