1 /* 2 * Copyright (C) 2004 Allan Sandfeld Jensen (kde (at) carewolf.com) 3 * Copyright (C) 2006, 2007, 2008, 2009 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 #ifndef RenderCounter_h 23 #define RenderCounter_h 24 25 #include "core/rendering/RenderText.h" 26 #include "core/rendering/style/CounterContent.h" 27 28 namespace blink { 29 30 class CounterNode; 31 32 class RenderCounter FINAL : public RenderText { 33 public: 34 RenderCounter(Document*, const CounterContent&); 35 virtual ~RenderCounter(); 36 virtual void destroy() OVERRIDE; 37 38 static void destroyCounterNodes(RenderObject&); 39 static void destroyCounterNode(RenderObject&, const AtomicString& identifier); 40 static void rendererSubtreeAttached(RenderObject*); 41 static void rendererRemovedFromTree(RenderObject*); 42 static void rendererStyleChanged(RenderObject&, const RenderStyle* oldStyle, const RenderStyle* newStyle); 43 44 void updateCounter(); 45 46 protected: 47 virtual void willBeDestroyed() OVERRIDE; 48 49 private: 50 virtual const char* renderName() const OVERRIDE; 51 virtual bool isCounter() const OVERRIDE; 52 virtual PassRefPtr<StringImpl> originalText() const OVERRIDE; 53 54 // Removes the reference to the CounterNode associated with this renderer. 55 // This is used to cause a counter display update when the CounterNode tree changes. 56 void invalidate(); 57 58 CounterContent m_counter; 59 CounterNode* m_counterNode; 60 RenderCounter* m_nextForSameCounter; 61 friend class CounterNode; 62 }; 63 64 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderCounter, isCounter()); 65 66 } // namespace blink 67 68 #ifndef NDEBUG 69 // Outside the WebCore namespace for ease of invocation from gdb. 70 void showCounterRendererTree(const blink::RenderObject*, const char* counterName = 0); 71 #endif 72 73 #endif // RenderCounter_h 74
