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public static DoOnUIThread ( |
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| element | ||
| action | System.Action | |
| return | void | |
/// <summary>
/// Retrieves a list of the available video devices, their resolutions and pixel formats.
/// </summary>
private void LoadVideoDevices()
{
var videoDevices = _mediaManager.GetVideoDevices();
var videoDeviceKeys = new List <KeyValuePair <string, VideoMode> >();
if (videoDevices != null && videoDevices.Count > 0)
{
for (int index = 0; index < videoDevices.Count; index++)
{
if (_supportedVideoModes.Contains(MFVideoSubTypes.FindVideoSubTypeForGuid(videoDevices[index].VideoSubType)))
{
var videoSubType = MFVideoSubTypes.FindVideoSubTypeForGuid(videoDevices[index].VideoSubType);
string videoModeName = String.Format("{0} {1} x {2} {3}", videoDevices[index].DeviceFriendlyName, videoDevices[index].Width, videoDevices[index].Height, videoSubType.GetSubTypeDescription());
videoDeviceKeys.Add(new KeyValuePair <string, VideoMode>(videoModeName, videoDevices[index]));
//_localVideoDevices.Items.Add();
}
}
}
UIHelper.DoOnUIThread(this, delegate
{
_localVideoDevices.ItemsSource = videoDeviceKeys;
_localVideoDevices.IsEnabled = true;
});
}
public SoftPhone()
{
InitializeComponent();
// Do some UI initialisation.
m_uasGrid.Visibility = Visibility.Collapsed;
m_cancelButton.Visibility = Visibility.Collapsed;
m_byeButton.Visibility = Visibility.Collapsed;
// Set up the SIP client. It can receive calls and initiate outgoing calls.
_sipClient = new SIPClient();
_sipClient.IncomingCall += SIPCallIncoming;
_sipClient.CallAnswer += SIPCallAnswered;
_sipClient.CallEnded += ResetToCallStartState;
_sipClient.StatusMessage += (message) => { SetStatusText(m_signallingStatus, message); };
// If a STUN server hostname has been specified start the STUN client to lookup and periodically update the public IP address of the host machine.
if (!SIPSoftPhoneState.STUNServerHostname.IsNullOrBlank())
{
_stunClient = new SoftphoneSTUNClient(SIPSoftPhoneState.STUNServerHostname);
_stunClient.PublicIPAddressDetected += (ip) =>
{
SIPSoftPhoneState.PublicIPAddress = ip;
UIHelper.DoOnUIThread(this, delegate
{
publicIPAddress.Content = $"Public IP: {ip}";
});
};
_stunClient.Run();
}
Initialise();
}
/// <summary>
/// Set up the UI to present options for an establisehd SIP call, i.e. hide the cancel
/// button and display they hangup button.
/// </summary>
private void SIPCallAnswered()
{
UIHelper.DoOnUIThread(this, delegate
{
m_callButton.Visibility = Visibility.Collapsed;
m_cancelButton.Visibility = Visibility.Collapsed;
m_byeButton.Visibility = Visibility.Visible;
});
}
/// <summary>
/// Set up the UI to present the options for an incoming SIP call.
/// </summary>
private void SIPCallIncoming()
{
_activeClient = _sipClient;
UIHelper.DoOnUIThread(this, delegate
{
m_uacGrid.Visibility = Visibility.Collapsed;
m_uasGrid.Visibility = Visibility.Visible;
});
}
/// <summary>
/// Reset the UI elements to their initial state at the end of a call.
/// </summary>
private void ResetToCallStartState()
{
UIHelper.DoOnUIThread(this, delegate
{
m_callButton.Visibility = Visibility.Visible;
m_cancelButton.Visibility = Visibility.Collapsed;
m_byeButton.Visibility = Visibility.Collapsed;
m_answerButton.Visibility = Visibility.Visible;
m_rejectButton.Visibility = Visibility.Visible;
m_redirectButton.Visibility = Visibility.Visible;
m_hangupButton.Visibility = Visibility.Visible;
m_uacGrid.Visibility = Visibility.Visible;
m_uasGrid.Visibility = Visibility.Collapsed;
});
_activeClient = null;
}
private void LocalVideoError(string error)
{
UIHelper.DoOnUIThread(this, delegate
{
if (error.NotNullOrBlank())
{
_localVideoStatus.Text = error;
_localVideoStatusBorder.Visibility = System.Windows.Visibility.Visible;
_startLocalVideoButton.IsEnabled = true;
_stopLocalVideoButton.IsEnabled = false;
_localVideoDevices.IsEnabled = true;
}
else
{
_localVideoStatus.Text = null;
_localVideoStatusBorder.Visibility = System.Windows.Visibility.Collapsed;
}
});
}
/// <summary>
/// Set the text on one of the status text blocks. Status messages are used to indicate how the call is
/// progressing or events related to it.
/// </summary>
private void SetStatusText(TextBlock textBlock, string text)
{
logger.Debug(text);
UIHelper.DoOnUIThread(this, delegate { textBlock.Text = text; });
}