/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim:set ts=2 sw=2 sts=2 et cindent: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef ScriptProcessorNode_h_

#define ScriptProcessorNode_h_

#include "AudioNode.h"

namespace mozilla {

namespace dom {

class AudioContext;

class SharedBuffers;

class ScriptProcessorNode final : public AudioNode

{

public:

  ScriptProcessorNode(AudioContext* aContext,

                      uint32_t aBufferSize,

                      uint32_t aNumberOfInputChannels,

                      uint32_t aNumberOfOutputChannels);

  NS_INLINE_DECL_REFCOUNTING_INHERITED(ScriptProcessorNode, AudioNode)

  IMPL_EVENT_HANDLER(audioprocess)

  using EventTarget::EventListenerAdded;

  void EventListenerAdded(nsAtom* aType) override;

  using EventTarget::EventListenerRemoved;

  void EventListenerRemoved(nsAtom* aType) override;

  JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;

  AudioNode* Connect(AudioNode& aDestination, uint32_t aOutput,

                     uint32_t aInput, ErrorResult& aRv) override

  {

    AudioNode* node = AudioNode::Connect(aDestination, aOutput, aInput, aRv);

    if (!aRv.Failed()) {

      UpdateConnectedStatus();

    }

    return node;

  }

  void Connect(AudioParam& aDestination, uint32_t aOutput,

               ErrorResult& aRv) override

  {

    AudioNode::Connect(aDestination, aOutput, aRv);

    if (!aRv.Failed()) {

      UpdateConnectedStatus();

    }

  }

  void Disconnect(ErrorResult& aRv) override

  {

    AudioNode::Disconnect(aRv);

    UpdateConnectedStatus();

  }

  void Disconnect(uint32_t aOutput, ErrorResult& aRv) override

  {

    AudioNode::Disconnect(aOutput, aRv);

    UpdateConnectedStatus();

  }

  void NotifyInputsChanged() override

  {

    UpdateConnectedStatus();

  }

  void NotifyHasPhantomInput() override

  {

    mHasPhantomInput = true;

    // No need to UpdateConnectedStatus() because there was previously an

    // input in InputNodes().

  }

  void Disconnect(AudioNode& aDestination, ErrorResult& aRv) override

  {

    AudioNode::Disconnect(aDestination, aRv);

    UpdateConnectedStatus();

  }

  void Disconnect(AudioNode& aDestination, uint32_t aOutput, ErrorResult& aRv) override

  {

    AudioNode::Disconnect(aDestination, aOutput, aRv);

    UpdateConnectedStatus();

  }

  void Disconnect(AudioNode& aDestination, uint32_t aOutput, uint32_t aInput, ErrorResult& aRv) override

  {

    AudioNode::Disconnect(aDestination, aOutput, aInput, aRv);

    UpdateConnectedStatus();

  }

  void Disconnect(AudioParam& aDestination, ErrorResult& aRv) override

  {

    AudioNode::Disconnect(aDestination, aRv);

    UpdateConnectedStatus();

  }

  void Disconnect(AudioParam& aDestination, uint32_t aOutput, ErrorResult& aRv) override

  {

    AudioNode::Disconnect(aDestination, aOutput, aRv);

    UpdateConnectedStatus();

  }

  void SetChannelCount(uint32_t aChannelCount, ErrorResult& aRv) override

  {

    if (aChannelCount != ChannelCount()) {

      aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);

    }

  }

  void SetChannelCountModeValue(ChannelCountMode aMode, ErrorResult& aRv) override

  {

    if (aMode != ChannelCountMode::Explicit) {

      aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);

    }

  }

  uint32_t BufferSize() const

  {

    return mBufferSize;

  }

  uint32_t NumberOfOutputChannels() const

  {

    return mNumberOfOutputChannels;

  }

  using DOMEventTargetHelper::DispatchTrustedEvent;

  const char* NodeType() const override

  {

    return "ScriptProcessorNode";

  }

  size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override;

  size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override;

private:

  virtual ~ScriptProcessorNode();

  void UpdateConnectedStatus();

  const uint32_t mBufferSize;

  const uint32_t mNumberOfOutputChannels;

  bool mHasPhantomInput = false;

};

} // namespace dom

} // namespace mozilla

#endif