private Task SpeakMsgs()
{
CancellationToken = new CancellationTokenSource();
var token = CancellationToken.Token;
TskSpeakMsgs = Task.Run(() =>
{
Prompt prompt = null;
try
{
if (_synth.State != SynthesizerState.Paused)
{
while (Msgs.Count > 0)
{
prompt = _synth.SpeakAsync(Msgs.Dequeue());
Thread.Sleep(100);
while (_synth.State == SynthesizerState.Speaking)
{
token.ThrowIfCancellationRequested();
Thread.Sleep(100);
}
}
SpkCompleted();
}
DefaultPlaybackDevice?.SetVolumeAsync(PrevVol, token);
if (WasMuted)
{
DefaultPlaybackDevice?.SetMuteAsync(true, token);
}
}
catch (Exception canceledException)
{
if (prompt != null)
{
_synth.SpeakAsyncCancel(prompt);
}
else
{
_synth.SpeakAsyncCancelAll();
}
Debug.WriteLine("Task was cancelled");
Debug.WriteLine(canceledException.Message);
}
}, token);
return(TskSpeakMsgs);
}
public async void AddMessage(string msg)
{
try
{
// Wait until the Volume Controller is loaded.
if (TskLoadVolController.Status == TaskStatus.Running)
{
TskLoadVolController.Wait();
}
Msgs.Enqueue(msg);
if (DefaultPlaybackDevice == null)
{
throw new Exception("There is no device to play alert.");
}
// ReSharper disable once AssignmentInConditionalExpression
if (WasMuted = DefaultPlaybackDevice.IsMuted)
{
await DefaultPlaybackDevice.SetMuteAsync(false);
}
PrevVol = DefaultPlaybackDevice.Volume;
if (PrevVol <= 5)
{
PrevVol = 5;
}
await DefaultPlaybackDevice.SetVolumeAsync(AuxNotVolume);
await SpeakMsgs();
Debug.WriteLine($"Launching new thread with the message: {msg}");
}
catch (Exception exc)
{
throw new Exception(exc.Message);
}
}
