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31 #ifndef DeviceMotionDispatcher_h
32 #define DeviceMotionDispatcher_h
34 #include "core/frame/PlatformEventDispatcher.h"
35 #include "platform/heap/Handle.h"
36 #include "public/platform/WebDeviceMotionListener.h"
37 #include "wtf/RefPtr.h"
41 class DeviceMotionController;
42 class DeviceMotionData;
43 class WebDeviceMotionData;
45 // This class listens to device motion data and notifies all registered controllers.
46 class DeviceMotionDispatcher FINAL : public PlatformEventDispatcher, public WebDeviceMotionListener {
48 static DeviceMotionDispatcher& instance();
50 // Note that the returned object is owned by this class.
51 // FIXME: make the return value const, see crbug.com/233174.
52 DeviceMotionData* latestDeviceMotionData();
54 // Inherited from WebDeviceMotionListener.
55 virtual void didChangeDeviceMotion(const WebDeviceMotionData&) OVERRIDE;
58 DeviceMotionDispatcher();
59 virtual ~DeviceMotionDispatcher();
61 // Inherited from PlatformEventDispatcher.
62 virtual void startListening() OVERRIDE;
63 virtual void stopListening() OVERRIDE;
65 RefPtrWillBePersistent<DeviceMotionData> m_lastDeviceMotionData;
70 #endif // DeviceMotionDispatcher_h