/// <summary>
/// Update the state of the various audio route buttons
/// </summary>
private void UpdateAudioRouteButtonStates(BackEnd.CallAudioRoute audioRoute)
{
if (base.CallStatus == BackEnd.CallStatus.InProgress)
{
// There is a call in progress - update the audio routing button states
// First, get the available audio devices
BackEnd.CallAudioRoute availableDevices = BackgroundProcessController.Instance.CallController.AvailableAudioRoutes;
// Enable/disable buttons based on availability
this.IsEarpieceButtonEnabled = ((availableDevices & BackEnd.CallAudioRoute.Earpiece) != BackEnd.CallAudioRoute.None);
this.IsSpeakerButtonEnabled = ((availableDevices & BackEnd.CallAudioRoute.Speakerphone) != BackEnd.CallAudioRoute.None);
this.IsBluetoothButtonEnabled = ((availableDevices & BackEnd.CallAudioRoute.Bluetooth) != BackEnd.CallAudioRoute.None);
// Set the border color of the currently selected audio route button
Brush accentBrush = (Brush)App.Current.Resources["PhoneAccentBrush"];
Brush borderBrush = (Brush)App.Current.Resources["PhoneForegroundBrush"];
this.EarpieceButtonBorder = (audioRoute == BackEnd.CallAudioRoute.Earpiece) ? accentBrush : borderBrush;
this.SpeakerButtonBorder = (audioRoute == BackEnd.CallAudioRoute.Speakerphone) ? accentBrush : borderBrush;
this.BluetoothButtonBorder = (audioRoute == BackEnd.CallAudioRoute.Bluetooth) ? accentBrush : borderBrush;
}
else
{
// There is no call in progress - disable audio routing buttons
this.DisableAllAudioRouteButtons();
}
}
/// <summary>
/// The camera location value has changed
/// </summary>
/// <summary>
/// The audio route or the available audio devices has changed
/// </summary>
/// <param name="newRoute"></param>
public override void OnCallAudioRouteChanged(BackEnd.CallAudioRoute newRoute)
{
// Note, this call is called on some IPC thread - dispatch to the UI thread before doing anything else
this.Page.Dispatcher.BeginInvoke(() =>
{
// Call the base class method first
base.OnCallAudioRouteChanged(newRoute);
// Now, update the states of the various audio route buttons
this.UpdateAudioRouteButtonStates(newRoute);
});
}
/// <summary>
/// Change the audio route for this call
/// </summary>
public void SetAudioRoute(BackEnd.CallAudioRoute newRoute)
{
// We must have a call at this point
Debug.Assert(base.CallStatus != BackEnd.CallStatus.None);
// Change the audio route, if it has changed
if (newRoute != BackgroundProcessController.Instance.CallController.AudioRoute)
{
BackgroundProcessController.Instance.CallController.AudioRoute = newRoute;
// Disable all audio route buttons, so the user doesn't press them again and again.
// The buttons will get re-enabled if required when the audio route changes.
this.DisableAllAudioRouteButtons();
}
}
