/* -*- 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/. */

#include "AudioProcessingEvent.h"

#include "mozilla/dom/AudioProcessingEventBinding.h"

#include "mozilla/dom/ScriptSettings.h"

#include "AudioContext.h"

namespace mozilla {

namespace dom {

NS_IMPL_CYCLE_COLLECTION_INHERITED(AudioProcessingEvent, Event,

                                   mInputBuffer, mOutputBuffer, mNode)

NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(AudioProcessingEvent)

NS_INTERFACE_MAP_END_INHERITING(Event)

NS_IMPL_ADDREF_INHERITED(AudioProcessingEvent, Event)

NS_IMPL_RELEASE_INHERITED(AudioProcessingEvent, Event)

AudioProcessingEvent::AudioProcessingEvent(ScriptProcessorNode* aOwner,

                                           nsPresContext* aPresContext,

                                           WidgetEvent* aEvent)

  : Event(aOwner, aPresContext, aEvent)

  , mPlaybackTime(0.0)

  , mNode(aOwner)

{

}

AudioProcessingEvent::~AudioProcessingEvent()

{

}

JSObject*

AudioProcessingEvent::WrapObjectInternal(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)

{

  return AudioProcessingEvent_Binding::Wrap(aCx, this, aGivenProto);

}

already_AddRefed<AudioBuffer>

AudioProcessingEvent::LazilyCreateBuffer(uint32_t aNumberOfChannels,

                                         ErrorResult& aRv)

{

  RefPtr<AudioBuffer> buffer =

    AudioBuffer::Create(mNode->Context()->GetOwner(), aNumberOfChannels,

                        mNode->BufferSize(),

                        mNode->Context()->SampleRate(), aRv);

  MOZ_ASSERT(buffer || aRv.ErrorCodeIs(NS_ERROR_OUT_OF_MEMORY));

  return buffer.forget();

}

} // namespace dom

} // namespace mozilla