C++ (Cpp) GetAllStreams Examples

Example #1

File: AudioContext.cpp Project: Nazi-Nigger/gecko-dev

already_AddRefed<Promise>
AudioContext::Resume(ErrorResult& aRv)
{
  nsCOMPtr<nsIGlobalObject> parentObject = do_QueryInterface(GetParentObject());
  RefPtr<Promise> promise;
  promise = Promise::Create(parentObject, aRv);
  if (aRv.Failed()) {
    return nullptr;
  }

  if (mIsOffline) {
    promise->MaybeReject(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
    return promise.forget();
  }

  if (mAudioContextState == AudioContextState::Closed ||
      mCloseCalled) {
    promise->MaybeReject(NS_ERROR_DOM_INVALID_STATE_ERR);
    return promise.forget();
  }

  if (mAudioContextState == AudioContextState::Running) {
    promise->MaybeResolve(JS::UndefinedHandleValue);
    return promise.forget();
  }

  Destination()->Resume();

  nsTArray<MediaStream*> streams;
  // If mSuspendCalled is false then we already resumed all our streams,
  // so don't resume them again (since suspend(); resume(); resume(); should
  // be OK). But we still need to do ApplyAudioContextOperation
  // to ensure our new promise is resolved.
  if (mSuspendCalled) {
    streams = GetAllStreams();
  }
  mPromiseGripArray.AppendElement(promise);
  Graph()->ApplyAudioContextOperation(DestinationStream()->AsAudioNodeStream(),
                                      streams,
                                      AudioContextOperation::Resume, promise);

  mSuspendCalled = false;

  return promise.forget();
}

Example #2

File: AudioContext.cpp Project: subsevenx2001/gecko-dev

already_AddRefed<Promise>
AudioContext::Close(ErrorResult& aRv)
{
  nsCOMPtr<nsIGlobalObject> parentObject = do_QueryInterface(GetParentObject());
  RefPtr<Promise> promise;
  promise = Promise::Create(parentObject, aRv);
  if (aRv.Failed()) {
    return nullptr;
  }

  if (mIsOffline) {
    promise->MaybeReject(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
    return promise.forget();
  }

  if (mAudioContextState == AudioContextState::Closed) {
    promise->MaybeResolve(NS_ERROR_DOM_INVALID_STATE_ERR);
    return promise.forget();
  }

  if (Destination()) {
    Destination()->DestroyAudioChannelAgent();
  }

  mPromiseGripArray.AppendElement(promise);

  // This can be called when freeing a document, and the streams are dead at
  // this point, so we need extra null-checks.
  MediaStream* ds = DestinationStream();
  if (ds) {
    nsTArray<MediaStream*> streams;
    // If mSuspendCalled or mCloseCalled are true then we already suspended
    // all our streams, so don't suspend them again. But we still need to do
    // ApplyAudioContextOperation to ensure our new promise is resolved.
    if (!mSuspendCalled && !mCloseCalled) {
      streams = GetAllStreams();
    }
    Graph()->ApplyAudioContextOperation(ds->AsAudioNodeStream(), streams,
                                        AudioContextOperation::Close, promise);
  }
  mCloseCalled = true;

  return promise.forget();
}