Source/web/DeviceOrientationClientProxy.cpp

/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
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 *
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#include "config.h"
#include "DeviceOrientationClientProxy.h"

#include "WebDeviceOrientation.h"
#include "WebDeviceOrientationController.h"
#include "core/dom/DeviceOrientationData.h"
#include "wtf/OwnPtr.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefPtr.h"

namespace WebCore {
class DeviceOrientationController;
}

namespace WebKit {

void DeviceOrientationClientProxy::setController(WebCore::DeviceOrientationController* c)
{
    if (!m_client) // FIXME: Get rid of these null checks once device orientation is enabled by default.
        return;
    m_client->setController(new WebDeviceOrientationController(c));
}

void DeviceOrientationClientProxy::startUpdating()
{
    if (!m_client)
        return;
    m_client->startUpdating();
}

void DeviceOrientationClientProxy::stopUpdating()
{
    if (!m_client)
        return;
    m_client->stopUpdating();
}

WebCore::DeviceOrientationData* DeviceOrientationClientProxy::lastOrientation() const
{
    if (!m_client)
        return 0;

    // Cache the DeviceOrientationData pointer so its reference count does not drop to zero upon return.
    m_lastOrientation = m_client->lastOrientation();

    return m_lastOrientation.get();
}

void DeviceOrientationClientProxy::deviceOrientationControllerDestroyed()
{
    // Our lifetime is bound to the WebViewImpl.
}

} // namespace WebKit