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#ifndef DISPLAY_FRAME_SINK_H
#define DISPLAY_FRAME_SINK_H

#include "display_consumer.h"
#include "display_producer.h"

#include "base/memory/ref_counted.h"
#include "base/memory/scoped_refptr.h"
#include "components/viz/common/surfaces/frame_sink_id.h"

#include <QMutex>

namespace QtWebEngineCore {

// Connects a DisplayConsumer with a DisplayProducer.
class DisplayFrameSink final : public base::RefCountedThreadSafe<DisplayFrameSink>
{
public:
    static scoped_refptr<DisplayFrameSink> findOrCreate(viz::FrameSinkId frameSinkId);
    DisplayFrameSink(viz::FrameSinkId frameSinkId);
    ~DisplayFrameSink();
    void connect(DisplayConsumer *consumer);
    void connect(DisplayProducer *producer);
    void disconnect(DisplayConsumer *consumer);
    void disconnect(DisplayProducer *producer);
    void scheduleUpdate();
    QSGNode *updatePaintNode(QSGNode *oldNode, RenderWidgetHostViewQtDelegate *delegate);

private:
    const viz::FrameSinkId m_frameSinkId;
    mutable QMutex m_mutex;
    DisplayProducer *m_producer = nullptr;
    DisplayConsumer *m_consumer = nullptr;
};

} // namespace QtWebEngineCore

#endif // !DISPLAY_FRAME_SINK_H