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