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