Home | History | Annotate | Download | only in rendering 
      1 /*
      2  * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org)
      3  *           (C) 1999 Antti Koivisto (koivisto (at) kde.org)
      4  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009 Apple Inc. All rights reserved.
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Library General Public
      8  * License as published by the Free Software Foundation; either
      9  * version 2 of the License, or (at your option) any later version.
     10  *
     11  * This library is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  * Library General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU Library General Public License
     17  * along with this library; see the file COPYING.LIB.  If not, write to
     18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     19  * Boston, MA 02110-1301, USA.
     20  *
     21  */
     22 
     23 #ifndef RenderListItem_h
     24 #define RenderListItem_h
     25 
     26 #include "core/rendering/RenderBlock.h"
     27 
     28 namespace WebCore {
     29 
     30 class HTMLOListElement;
     31 class RenderListMarker;
     32 
     33 class RenderListItem FINAL : public RenderBlock {
     34 public:
     35     explicit RenderListItem(Element*);
     36 
     37     int value() const { if (!m_isValueUpToDate) updateValueNow(); return m_value; }
     38     void updateValue();
     39 
     40     bool hasExplicitValue() const { return m_hasExplicitValue; }
     41     int explicitValue() const { return m_explicitValue; }
     42     void setExplicitValue(int value);
     43     void clearExplicitValue();
     44 
     45     void setNotInList(bool notInList) { m_notInList = notInList; }
     46     bool notInList() const { return m_notInList; }
     47 
     48     const String& markerText() const;
     49     String markerTextWithSuffix() const;
     50 
     51     void updateListMarkerNumbers();
     52 
     53     static void updateItemValuesForOrderedList(const HTMLOListElement*);
     54     static unsigned itemCountForOrderedList(const HTMLOListElement*);
     55 
     56 private:
     57     virtual const char* renderName() const { return "RenderListItem"; }
     58 
     59     virtual bool isListItem() const { return true; }
     60 
     61     virtual void willBeDestroyed();
     62 
     63     virtual void insertedIntoTree() OVERRIDE;
     64     virtual void willBeRemovedFromTree() OVERRIDE;
     65 
     66     virtual bool isEmpty() const;
     67     virtual void paint(PaintInfo&, const LayoutPoint&);
     68 
     69     virtual void layout();
     70 
     71     void positionListMarker();
     72 
     73     virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
     74 
     75     virtual bool requiresForcedStyleRecalcPropagation() const { return true; }
     76 
     77     virtual void addOverflowFromChildren();
     78 
     79     void updateMarkerLocation();
     80     inline int calcValue() const;
     81     void updateValueNow() const;
     82     void explicitValueChanged();
     83 
     84     int m_explicitValue;
     85     RenderListMarker* m_marker;
     86     mutable int m_value;
     87 
     88     bool m_hasExplicitValue : 1;
     89     mutable bool m_isValueUpToDate : 1;
     90     bool m_notInList : 1;
     91 };
     92 
     93 inline RenderListItem* toRenderListItem(RenderObject* object)
     94 {
     95     ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isListItem());
     96     return static_cast<RenderListItem*>(object);
     97 }
     98 
     99 // This will catch anyone doing an unnecessary cast.
    100 void toRenderListItem(const RenderListItem*);
    101 
    102 } // namespace WebCore
    103 
    104 #endif // RenderListItem_h
    105