1/* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * (C) 2000 Simon Hausmann <hausmann@kde.org> 4 * Copyright (C) 2006, 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 RenderPart_h 24#define RenderPart_h 25 26#include "RenderWidget.h" 27 28namespace WebCore { 29 30// Renderer for frames via RenderFrameBase, and plug-ins via RenderEmbeddedObject. 31class RenderPart : public RenderWidget { 32public: 33 explicit RenderPart(Element*); 34 virtual ~RenderPart(); 35 36 virtual void setWidget(PassRefPtr<Widget>); 37 virtual void viewCleared(); 38 39#if USE(ACCELERATED_COMPOSITING) 40 bool requiresAcceleratedCompositing() const; 41#endif 42 43 virtual bool needsPreferredWidthsRecalculation() const; 44 virtual RenderBox* embeddedContentBox() const; 45 46 virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) OVERRIDE; 47 48protected: 49#if USE(ACCELERATED_COMPOSITING) 50 virtual bool requiresLayer() const; 51#endif 52 53private: 54 virtual bool isRenderPart() const { return true; } 55 virtual const char* renderName() const { return "RenderPart"; } 56}; 57 58inline RenderPart* toRenderPart(RenderObject* object) 59{ 60 ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isRenderPart()); 61 return static_cast<RenderPart*>(object); 62} 63 64// This will catch anyone doing an unnecessary cast. 65void toRenderPart(const RenderPart*); 66 67} 68 69#endif 70