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/*
 * Copyright (C) 2013-2014 Apple 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 INC. ``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 INC. 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 MainFrame_h
#define MainFrame_h

#include "Frame.h"
#include <wtf/Vector.h>

#if USE(APPLE_INTERNAL_SDK)
#include <WebKitAdditions/MainFrameIncludes.h>
#endif

namespace WebCore {

class DiagnosticLoggingClient;
class PageConfiguration;
class PageOverlayController;
class ScrollLatchingState;
class ServicesOverlayController;
class WheelEventDeltaFilter;

class MainFrame final : public Frame {
public:
    static Ref<MainFrame> create(Page&, PageConfiguration&);

    virtual ~MainFrame();

    void selfOnlyRef();
    void selfOnlyDeref();

    WheelEventDeltaFilter* wheelEventDeltaFilter() { return m_recentWheelEventDeltaFilter.get(); }
    PageOverlayController& pageOverlayController() { return *m_pageOverlayController; }

#if PLATFORM(MAC)
#if ENABLE(SERVICE_CONTROLS) || ENABLE(TELEPHONE_NUMBER_DETECTION)
    ServicesOverlayController& servicesOverlayController() { return *m_servicesOverlayController; }
#endif // ENABLE(SERVICE_CONTROLS) || ENABLE(TELEPHONE_NUMBER_DETECTION)

    ScrollLatchingState* latchingState();
    void pushNewLatchingState();
    void popLatchingState();
    void resetLatchingState();
    void removeLatchingStateForTarget(Element&);
#endif // PLATFORM(MAC)

    WEBCORE_EXPORT DiagnosticLoggingClient& diagnosticLoggingClient() const;

#if USE(APPLE_INTERNAL_SDK)
#include <WebKitAdditions/MainFrameMembers.h>
#endif

private:
    MainFrame(Page&, PageConfiguration&);

    void dropChildren();

    unsigned m_selfOnlyRefCount;

#if PLATFORM(MAC)
    Vector<ScrollLatchingState> m_latchingState;
#if ENABLE(SERVICE_CONTROLS) || ENABLE(TELEPHONE_NUMBER_DETECTION)
    std::unique_ptr<ServicesOverlayController> m_servicesOverlayController;
#endif
#endif

    std::unique_ptr<WheelEventDeltaFilter> m_recentWheelEventDeltaFilter;
    std::unique_ptr<PageOverlayController> m_pageOverlayController;
    DiagnosticLoggingClient* m_diagnosticLoggingClient;
};

inline bool Frame::isMainFrame() const
{
    return this == &m_mainFrame;
}

}

#endif