/////////////////////////////////////////////////////////////////////////
// Name: OnWebBrowserClosed
// Description: Called when the user closes the browser window.
/////////////////////////////////////////////////////////////////////////
void OnWebBrowserClosed()
{
ContentProtectionManager pManager;
HResult hr = g_pPlayer.GetContentProtectionManager(out pManager);
if (hr >= 0)
{
ContentProtectionManager.Enabler state = pManager.GetState();
if (state != ContentProtectionManager.Enabler.Complete)
{
Debug.WriteLine("User closed the browser window before we got the licence. Cancel.");
pManager.CancelEnable();
}
}
}
/////////////////////////////////////////////////////////////////////////
// Name: OnContentEnablerMessage
// Description: Handles requests from the content protection manager.
/////////////////////////////////////////////////////////////////////////
void OnContentEnablerMessage()
{
ContentProtectionManager pManager;
HResult hr = g_pPlayer.GetContentProtectionManager(out pManager);
if (hr >= 0)
{
ContentProtectionManager.Enabler state = pManager.GetState();
HResult hrStatus = pManager.GetStatus(); // Status of the last action.
// EnablerState is a defined for this application; it is not a standard
// Media Foundation enum. It specifies what action the
// ContentProtectionManager helper object is requesting.
try
{
switch (state)
{
case ContentProtectionManager.Enabler.Ready:
// Start the enable action.
pManager.DoEnable(ContentProtectionManager.EnablerFlags.SilentOrNonSilent);
break;
case ContentProtectionManager.Enabler.SilentInProgress:
// We are currently in the middle of silent enable.
// If the status code is NS_E_DRM_LICENSE_NOTACQUIRED,
// we need to try non-silent enable.
if ((int)hrStatus == ContentProtectionManager.NS_E_DRM_LICENSE_NOTACQUIRED)
{
Debug.WriteLine("Silent enabler failed, attempting non-silent.");
pManager.DoEnable(ContentProtectionManager.EnablerFlags.ForceNonSilent); // Try non-silent this time;
}
else
{
// Complete the operation. If it succeeded, the content will play.
// If it failed, the pipeline will queue an event with an error code.
pManager.CompleteEnable();
}
break;
case ContentProtectionManager.Enabler.NonSilentInProgress:
// We are currently in the middle of non-silent enable.
// Either we succeeded or an error occurred. Either way, complete
// the operation.
pManager.CompleteEnable();
break;
case ContentProtectionManager.Enabler.Complete:
// Nothing to do.
break;
default:
Debug.WriteLine(string.Format("Unknown EnablerState value! ({0})", state));
break;
}
}
catch
{
// If a previous call to DoEnable() failed, complete the operation
// so that the pipeline will get the correct failure code.
pManager.CompleteEnable();
}
}
}
