Source/WebKit/chromium/src/DeviceOrientationClientProxy.h

/*
 * Copyright (C) 2010 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:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS 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 APPLE OR ITS 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 DeviceOrientationClientProxy_h
#define DeviceOrientationClientProxy_h

#include "DeviceOrientation.h"
#include "DeviceOrientationClient.h"
#include "WebDeviceOrientationClient.h"
#include <wtf/RefPtr.h>

namespace WebCore {
class DeviceOrientationController;
}

namespace WebKit {

class DeviceOrientationClientProxy : public WebCore::DeviceOrientationClient {
public:
    DeviceOrientationClientProxy(WebDeviceOrientationClient* client)
        : m_client(client)
    {
    }

    void setController(WebCore::DeviceOrientationController*);
    void startUpdating();
    void stopUpdating();
    WebCore::DeviceOrientation* lastOrientation() const;
    virtual void deviceOrientationControllerDestroyed();

private:
    WebDeviceOrientationClient* m_client;
    mutable RefPtr<WebCore::DeviceOrientation> m_lastOrientation;
};

} // namespace WebKit

#endif // DeviceOrientationClientProxy_h