1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * (C) 1999 Antti Koivisto (koivisto@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/RenderBlockFlow.h" 27 28 namespace blink { 29 30 class HTMLOListElement; 31 class RenderListMarker; 32 33 class RenderListItem FINAL : public RenderBlockFlow { 34 public: 35 explicit RenderListItem(Element*); 36 virtual void trace(Visitor*) OVERRIDE; 37 value()38 int value() const { if (!m_isValueUpToDate) updateValueNow(); return m_value; } 39 void updateValue(); 40 hasExplicitValue()41 bool hasExplicitValue() const { return m_hasExplicitValue; } explicitValue()42 int explicitValue() const { return m_explicitValue; } 43 void setExplicitValue(int value); 44 void clearExplicitValue(); 45 46 void setNotInList(bool); notInList()47 bool notInList() const { return m_notInList; } 48 49 const String& markerText() const; 50 51 void updateListMarkerNumbers(); 52 53 static void updateItemValuesForOrderedList(const HTMLOListElement*); 54 static unsigned itemCountForOrderedList(const HTMLOListElement*); 55 56 bool isEmpty() const; 57 58 private: renderName()59 virtual const char* renderName() const OVERRIDE { return "RenderListItem"; } 60 isListItem()61 virtual bool isListItem() const OVERRIDE { return true; } 62 63 virtual void willBeDestroyed() OVERRIDE; 64 65 virtual void insertedIntoTree() OVERRIDE; 66 virtual void willBeRemovedFromTree() OVERRIDE; 67 68 virtual void paint(PaintInfo&, const LayoutPoint&) OVERRIDE; 69 70 virtual void layout() OVERRIDE; 71 72 // Returns true if we re-attached and updated the location of the marker. 73 bool updateMarkerLocation(); 74 void updateMarkerLocationAndInvalidateWidth(); 75 76 void positionListMarker(); 77 78 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE; 79 80 virtual void addOverflowFromChildren() OVERRIDE; 81 82 inline int calcValue() const; 83 void updateValueNow() const; 84 void explicitValueChanged(); 85 86 int m_explicitValue; 87 RawPtrWillBeMember<RenderListMarker> m_marker; 88 mutable int m_value; 89 90 bool m_hasExplicitValue : 1; 91 mutable bool m_isValueUpToDate : 1; 92 bool m_notInList : 1; 93 }; 94 95 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderListItem, isListItem()); 96 97 } // namespace blink 98 99 #endif // RenderListItem_h 100