/*
 * Copyright (C) 2010, 2011 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. 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 INC. 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 WebBackForwardListItem_h
#define WebBackForwardListItem_h

#include "APIObject.h"
#include "SessionState.h"
#include <wtf/PassRefPtr.h>
#include <wtf/text/WTFString.h>

namespace API {
class Data;
}

namespace IPC {
class Decoder;
class Encoder;
}

namespace WebKit {

class WebBackForwardListItem : public API::ObjectImpl<API::Object::Type::BackForwardListItem> {
public:
    static PassRefPtr<WebBackForwardListItem> create(BackForwardListItemState, uint64_t pageID);
    virtual ~WebBackForwardListItem();

    uint64_t itemID() const { return m_itemState.identifier; }
    const BackForwardListItemState& itemState() { return m_itemState; }
    uint64_t pageID() const { return m_pageID; }

    void setPageState(PageState pageState) { m_itemState.pageState = WTFMove(pageState); }

    const String& originalURL() const { return m_itemState.pageState.mainFrameState.originalURLString; }
    const String& url() const { return m_itemState.pageState.mainFrameState.urlString; }
    const String& title() const { return m_itemState.pageState.title; }

    bool itemIsInSameDocument(const WebBackForwardListItem&) const;

#if PLATFORM(COCOA)
    ViewSnapshot* snapshot() const { return m_itemState.snapshot.get(); }
    void setSnapshot(PassRefPtr<ViewSnapshot> snapshot) { m_itemState.snapshot = snapshot; }
#endif

    static uint64_t highedUsedItemID();

private:
    explicit WebBackForwardListItem(BackForwardListItemState, uint64_t pageID);

    BackForwardListItemState m_itemState;
    uint64_t m_pageID;
};

typedef Vector<RefPtr<WebBackForwardListItem>> BackForwardListItemVector;

} // namespace WebKit

#endif // WebBackForwardListItem_h
