third_party/WebKit/Source/core/css/resolver/ElementResolveContext.h

/*
 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple 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 ElementResolveContext_h
#define ElementResolveContext_h

#include "core/dom/Element.h"
#include "core/style/ComputedStyleConstants.h"

namespace blink {

class ContainerNode;
class Document;
class Element;
class ComputedStyle;

// ElementResolveContext is immutable and serves as an input to the style
// resolve process.
class CORE_EXPORT ElementResolveContext {
  STACK_ALLOCATED();

 public:
  explicit ElementResolveContext(const Document&);

  explicit ElementResolveContext(Element&);

  Element* element() const { return m_element; }
  const ContainerNode* parentNode() const { return m_parentNode; }
  const ComputedStyle* rootElementStyle() const { return m_rootElementStyle; }
  const ComputedStyle* parentStyle() const {
    return parentNode() ? parentNode()->computedStyle() : nullptr;
  }
  EInsideLink elementLinkState() const { return m_elementLinkState; }
  bool distributedToInsertionPoint() const {
    return m_distributedToInsertionPoint;
  }

 private:
  Member<Element> m_element;
  Member<ContainerNode> m_parentNode;
  const ComputedStyle* m_rootElementStyle;
  EInsideLink m_elementLinkState;
  bool m_distributedToInsertionPoint;
};

}  // namespace blink

#endif  // ElementResolveContext_h