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      1 /*
      2  * Copyright 2010 Apple Inc. All rights reserved.
      3  * Copyright (C) 2012 Samsung Electronics. All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *  * Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  *  * Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
     18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #ifndef DeviceMotionController_h
     28 #define DeviceMotionController_h
     29 
     30 #include "core/dom/Event.h"
     31 #include "core/platform/Supplementable.h"
     32 #include "modules/device_orientation/DeviceSensorEventController.h"
     33 
     34 namespace WebCore {
     35 
     36 class DeviceMotionData;
     37 
     38 class DeviceMotionController : public DeviceSensorEventController, public Supplement<ScriptExecutionContext> {
     39 
     40 public:
     41     virtual ~DeviceMotionController();
     42 
     43     static const char* supplementName();
     44     static DeviceMotionController* from(Document*);
     45 
     46     void didChangeDeviceMotion(DeviceMotionData*);
     47 
     48 private:
     49     explicit DeviceMotionController(Document*);
     50     virtual void registerWithDispatcher() OVERRIDE;
     51     virtual void unregisterWithDispatcher() OVERRIDE;
     52 
     53     virtual bool hasLastData() OVERRIDE;
     54     virtual PassRefPtr<Event> getLastEvent() OVERRIDE;
     55     virtual bool isNullEvent(Event*) OVERRIDE;
     56 };
     57 
     58 } // namespace WebCore
     59 
     60 #endif // DeviceMotionController_h
     61