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      1 /*
      2  * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org)
      3  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
      4  *
      5  * This library is free software; you can redistribute it and/or
      6  * modify it under the terms of the GNU Library General Public
      7  * License as published by the Free Software Foundation; either
      8  * version 2 of the License, or (at your option) any later version.
      9  *
     10  * This library is distributed in the hope that it will be useful,
     11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13  * Library General Public License for more details.
     14  *
     15  * You should have received a copy of the GNU Library General Public License
     16  * along with this library; see the file COPYING.LIB.  If not, write to
     17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     18  * Boston, MA 02110-1301, USA.
     19  *
     20  */
     21 
     22 #include "config.h"
     23 #include "core/css/resolver/ElementResolveContext.h"
     24 
     25 #include "core/dom/Node.h"
     26 #include "core/dom/NodeRenderStyle.h"
     27 #include "core/dom/NodeRenderingTraversal.h"
     28 #include "core/dom/VisitedLinkState.h"
     29 
     30 namespace blink {
     31 
     32 ElementResolveContext::ElementResolveContext(const Document& document)
     33     : m_element(nullptr)
     34     , m_parentNode(nullptr)
     35     , m_rootElementStyle(document.documentElement() ? document.documentElement()->renderStyle() : document.renderStyle())
     36     , m_elementLinkState(NotInsideLink)
     37     , m_distributedToInsertionPoint(false)
     38 {
     39 }
     40 
     41 ElementResolveContext::ElementResolveContext(Element& element)
     42     : m_element(&element)
     43     , m_elementLinkState(element.document().visitedLinkState().determineLinkState(element))
     44     , m_distributedToInsertionPoint(false)
     45 {
     46     NodeRenderingTraversal::ParentDetails parentDetails;
     47     m_parentNode = NodeRenderingTraversal::parent(&element, &parentDetails);
     48     m_distributedToInsertionPoint = parentDetails.insertionPoint();
     49 
     50     const Document& document = element.document();
     51     Node* documentElement = document.documentElement();
     52     RenderStyle* documentStyle = document.renderStyle();
     53     m_rootElementStyle = documentElement && element != documentElement ? documentElement->renderStyle() : documentStyle;
     54     if (!m_rootElementStyle)
     55         m_rootElementStyle = documentStyle;
     56 }
     57 
     58 } // namespace blink
     59