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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef DeviceOrientationDispatcher_h
#define DeviceOrientationDispatcher_h
#include "core/frame/DeviceEventDispatcherBase.h"
#include "platform/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 orientation data and notifies all registered controllers.
class DeviceOrientationDispatcher : public DeviceEventDispatcherBase, 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();
// Inherited from WebDeviceOrientationListener.
virtual void didChangeDeviceOrientation(const blink::WebDeviceOrientationData&) OVERRIDE;
private:
DeviceOrientationDispatcher();
~DeviceOrientationDispatcher();
// Inherited from DeviceEventDispatcherBase.
virtual void startListening() OVERRIDE;
virtual void stopListening() OVERRIDE;
RefPtrWillBePersistent<DeviceOrientationData> m_lastDeviceOrientationData;
};
} // namespace WebCore
#endif // DeviceOrientationDispatcher_h
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