tenfourfox/dom/media/webaudio/PlayingRefChangeHandler.h

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2017-04-19 07:56:45 +00:00
/* -*- 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 PlayingRefChangeHandler_h__
#define PlayingRefChangeHandler_h__
#include "nsThreadUtils.h"
#include "AudioNodeStream.h"
namespace mozilla {
namespace dom {
class PlayingRefChangeHandler final : public nsRunnable
{
public:
enum ChangeType { ADDREF, RELEASE };
PlayingRefChangeHandler(AudioNodeStream* aStream, ChangeType aChange)
: mStream(aStream)
, mChange(aChange)
{
}
NS_IMETHOD Run()
{
RefPtr<AudioNode> node = mStream->Engine()->NodeMainThread();
if (node) {
if (mChange == ADDREF) {
node->MarkActive();
} else if (mChange == RELEASE) {
node->MarkInactive();
}
}
return NS_OK;
}
private:
RefPtr<AudioNodeStream> mStream;
ChangeType mChange;
};
} // namespace dom
} // namespace mozilla
#endif