public bool Remove(TTSMessage message)
{
if (!_messages.Contains(message))
{
return(false);
}
if (null == _parentTTS)
{
throw new InvalidOperationException("No associated Text-To-Speech subsystem for cancellation");
}
_parentTTS.TTSInitialize();
vx_tts_status status = VivoxCoreInstance.vx_tts_cancel_utterance(_parentTTS.TTSManagerId, message.Key);
if (TextToSpeech.IsNotTTSError(status))
{
BeforeMessageRemoved?.Invoke(this, new ITTSMessageQueueEventArgs(message));
return(_messages.Remove(message));
}
else
{
throw new VivoxApiException((int)status);
}
}
// Internal. Remove messages from the collection without canceling them.
// Used during tts subsystem shutdown, or when message playback ends/fails.
internal void Cleanup(TTSMessage message = null)
{
if (null == message)
{
foreach (TTSMessage msg in _messages)
{
BeforeMessageRemoved?.Invoke(this, new ITTSMessageQueueEventArgs(msg));
}
_messages.Clear();
}
else if (_messages.Contains(message))
{
BeforeMessageRemoved?.Invoke(this, new ITTSMessageQueueEventArgs(message));
_messages.Remove(message);
}
}