public override void StateVariableChanged(UPnPService pus, string pcwszStateVarName, object vaValue)
{
try
{
IUPnPServiceCallback callback = (IUPnPServiceCallback)connection.Target;
if (callback == null)
{
return;
}
XPathDocument doc = new XPathDocument(new StringReader((string)vaValue));
XPathNavigator nav = doc.CreateNavigator();
foreach (XPathNavigator node in nav.Select(XPath.Expressions.EventElements))
{
XPathNavigator val = node.SelectSingleNode(XPath.Expressions.ValueAttributes);
if (String.CompareOrdinal(val.Value, "NOT_IMPLEMENTED") != 0)
{
callback.StateVariableChanged(pus, node.LocalName, val.Value);
}
}
}
finally
{
Marshal.ReleaseComObject(pus);
}
}
private void OnTimerFired(object state)
{
if (this.TransportState == TransportState.PLAYING)
{
IUPnPServiceCallback x = this;
x.StateVariableChanged(_service, "RelTime", _timeSpanBase.Add(DateTime.Now - _baseTime));
}
}
public virtual void StateVariableChanged(UPnPService pus, string pcwszStateVarName, object vaValue)
{
try
{
IUPnPServiceCallback callback = (IUPnPServiceCallback)connection.Target;
if (callback == null)
{
return;
}
callback.StateVariableChanged(pus, pcwszStateVarName, vaValue);
}
finally
{
Marshal.ReleaseComObject(pus);
}
}
void IUPnPServiceCallback.ServiceInstanceDied(UPnPService pus)
{
try
{
IUPnPServiceCallback callback = (IUPnPServiceCallback)connection.Target;
if (callback == null)
{
return;
}
callback.ServiceInstanceDied(pus);
}
finally
{
Marshal.ReleaseComObject(pus);
}
}
void AVTransport_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName != "LastChange")
{
return;
}
PositionInfo pi = GetPositionInfo();
IUPnPServiceCallback x = this;
if (pi.TrackDuration.HasValue)
{
x.StateVariableChanged(_service, "TrackDuration", pi.TrackDuration.Value);
}
if (pi.RelTime.HasValue)
{
x.StateVariableChanged(_service, "RelTime", (_timeSpanBase = pi.RelTime.Value));
}
_baseTime = DateTime.Now;
}
public ServiceCallback(IUPnPServiceCallback outer)
{
connection = new WeakReference(outer);
}
public AVTransportCallback(IUPnPServiceCallback outer)
: base(outer)
{
}
public ServiceCallback(IUPnPServiceCallback outer)
{
connection = new WeakReference(outer);
}
public AVTransportCallback(IUPnPServiceCallback outer) : base(outer)
{
}