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#ifndef QT3DINPUT_INPUT_MOUSEHANDLER_H
#define QT3DINPUT_INPUT_MOUSEHANDLER_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of other Qt classes.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <Qt3DInput/qmouseevent.h>
#include <Qt3DCore/qbackendnode.h>

QT_BEGIN_NAMESPACE

namespace Qt3DInput {
namespace Input {

class InputHandler;

class MouseHandler : public Qt3DCore::QBackendNode
{
public:
    MouseHandler();
    ~MouseHandler();

    Qt3DCore::QNodeId mouseDevice() const;
    void setInputHandler(InputHandler *handler);
    void mouseEvent(const QMouseEventPtr &event);
#if QT_CONFIG(wheelevent)
    void wheelEvent(const QWheelEventPtr &event);
#endif

protected:
    void sceneChangeEvent(const Qt3DCore::QSceneChangePtr &e) Q_DECL_OVERRIDE;
    void setDevice(Qt3DCore::QNodeId device);

private:
    void initializeFromPeer(const Qt3DCore::QNodeCreatedChangeBasePtr &change) Q_DECL_FINAL;

    Qt3DCore::QNodeId m_mouseDevice;
    InputHandler *m_inputHandler;
};

class MouseHandlerFunctor : public Qt3DCore::QBackendNodeMapper
{
public:
    explicit MouseHandlerFunctor(InputHandler *handler);

    Qt3DCore::QBackendNode *create(const Qt3DCore::QNodeCreatedChangeBasePtr &change) const Q_DECL_OVERRIDE;
    Qt3DCore::QBackendNode *get(Qt3DCore::QNodeId id) const Q_DECL_OVERRIDE;
    void destroy(Qt3DCore::QNodeId id) const Q_DECL_OVERRIDE;

private:
    InputHandler *m_handler;
};

} // namespace Input
} // namespace Qt3DInput

QT_END_NAMESPACE

#endif // QT3DINPUT_INPUT_MOUSEHANDLER_H
