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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 AudioProcessingEvent_h_
#define AudioProcessingEvent_h_
#include "AudioBuffer.h"
#include "ScriptProcessorNode.h"
#include "mozilla/dom/Event.h"
namespace mozilla {
namespace dom {
class AudioProcessingEvent final : public Event
{
public:
AudioProcessingEvent(ScriptProcessorNode* aOwner,
nsPresContext* aPresContext,
WidgetEvent* aEvent);
NS_DECL_ISUPPORTS_INHERITED
NS_FORWARD_TO_EVENT
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(AudioProcessingEvent, Event)
JSObject* WrapObjectInternal(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
void InitEvent(AudioBuffer* aInputBuffer,
uint32_t aNumberOfInputChannels,
double aPlaybackTime)
{
InitEvent(NS_LITERAL_STRING("audioprocess"), false, false);
mInputBuffer = aInputBuffer;
mNumberOfInputChannels = aNumberOfInputChannels;
mPlaybackTime = aPlaybackTime;
}
double PlaybackTime() const
{
return mPlaybackTime;
}
AudioBuffer* GetInputBuffer(ErrorResult& aRv)
{
if (!mInputBuffer) {
mInputBuffer = LazilyCreateBuffer(mNumberOfInputChannels, aRv);
}
return mInputBuffer;
}
AudioBuffer* GetOutputBuffer(ErrorResult& aRv)
{
if (!mOutputBuffer) {
mOutputBuffer = LazilyCreateBuffer(mNode->NumberOfOutputChannels(), aRv);
}
return mOutputBuffer;
}
bool HasOutputBuffer() const
{
return !!mOutputBuffer;
}
protected:
virtual ~AudioProcessingEvent();
private:
already_AddRefed<AudioBuffer>
LazilyCreateBuffer(uint32_t aNumberOfChannels, ErrorResult& rv);
private:
double mPlaybackTime;
RefPtr<AudioBuffer> mInputBuffer;
RefPtr<AudioBuffer> mOutputBuffer;
RefPtr<ScriptProcessorNode> mNode;
uint32_t mNumberOfInputChannels;
};
} // namespace dom
} // namespace mozilla
#endif
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