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#ifndef DeviceOrientationDispatcher_h
#define DeviceOrientationDispatcher_h
#include "core/frame/DeviceSensorEventDispatcher.h"
#include "heap/Handle.h"
#include "public/platform/WebDeviceOrientationListener.h"
#include "wtf/RefPtr.h"
namespace blink {
class WebDeviceOrientationData;
}
namespace WebCore {
class DeviceOrientationController;
class DeviceOrientationData;
// This class listens to device motion data and dispatches it to all
// listening controllers.
class DeviceOrientationDispatcher : public DeviceSensorEventDispatcher, public blink::WebDeviceOrientationListener {
public:
static DeviceOrientationDispatcher& instance();
// Note that the returned object is owned by this class.
// FIXME: make the return value const, see crbug.com/233174.
DeviceOrientationData* latestDeviceOrientationData();
// This method is called every time new device motion data is available.
virtual void didChangeDeviceOrientation(const blink::WebDeviceOrientationData&) OVERRIDE;
void addDeviceOrientationController(DeviceOrientationController*);
void removeDeviceOrientationController(DeviceOrientationController*);
private:
DeviceOrientationDispatcher();
~DeviceOrientationDispatcher();
virtual void startListening() OVERRIDE;
virtual void stopListening() OVERRIDE;
RefPtrWillBePersistent<DeviceOrientationData> m_lastDeviceOrientationData;
};
} // namespace WebCore
#endif // DeviceOrientationDispatcher_h