/*
 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
 *           (C) 1999 Antti Koivisto (koivisto@kde.org)
 *           (C) 2001 Dirk Mueller (mueller@kde.org)
 *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
 * Copyright (C) 2011 Google Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 *
 */

#ifndef SKY_ENGINE_CORE_DOM_STYLESHEETCOLLECTION_H_
#define SKY_ENGINE_CORE_DOM_STYLESHEETCOLLECTION_H_

#include "sky/engine/core/dom/DocumentOrderedList.h"
#include "sky/engine/wtf/FastAllocBase.h"
#include "sky/engine/wtf/PassOwnPtr.h"
#include "sky/engine/wtf/RefPtr.h"
#include "sky/engine/wtf/Vector.h"

namespace blink {

class CSSStyleSheet;
class ContainerNode;
class HTMLStyleElement;
class StyleResolver;
class TreeScope;

class StyleSheetCollection {
    WTF_MAKE_NONCOPYABLE(StyleSheetCollection);
    WTF_MAKE_FAST_ALLOCATED;
public:
    static PassOwnPtr<StyleSheetCollection> create(TreeScope& treeScope)
    {
        return adoptPtr(new StyleSheetCollection(treeScope));
    }
    ~StyleSheetCollection();

    Vector<RefPtr<CSSStyleSheet> >& activeAuthorStyleSheets() { return m_activeAuthorStyleSheets; }
    const Vector<RefPtr<CSSStyleSheet> >& activeAuthorStyleSheets() const { return m_activeAuthorStyleSheets; }

    void addStyleSheetCandidateNode(HTMLStyleElement&);
    void removeStyleSheetCandidateNode(HTMLStyleElement&);

    void updateActiveStyleSheets(StyleResolver&);

private:
    explicit StyleSheetCollection(TreeScope&);

    void collectStyleSheets(Vector<RefPtr<CSSStyleSheet>>& candidateSheets);

    TreeScope& m_treeScope;
    DocumentOrderedList m_styleSheetCandidateNodes;    
    Vector<RefPtr<CSSStyleSheet>> m_activeAuthorStyleSheets;
};

}

#endif  // SKY_ENGINE_CORE_DOM_STYLESHEETCOLLECTION_H_