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      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 "RenderWidget.h"
     27 
     28 namespace WebCore {
     29 
     30 // Renderer for frames via RenderPartObject, and plug-ins via RenderEmbeddedObject.
     31 
     32 // FIXME: This class is subclassed in RenderPartObject for iframes, which is in turn
     33 // subclassed in RenderEmbeddedObject for object and embed. This class itself could be removed.
     34 class RenderPart : public RenderWidget {
     35 public:
     36     RenderPart(Element*);
     37     virtual ~RenderPart();
     38 
     39     bool hasFallbackContent() const { return m_hasFallbackContent; }
     40 
     41     virtual void setWidget(PassRefPtr<Widget>);
     42     virtual void viewCleared();
     43 
     44 protected:
     45     bool m_hasFallbackContent;
     46 
     47 private:
     48     virtual bool isRenderPart() const { return true; }
     49     virtual const char* renderName() const { return "RenderPart"; }
     50 };
     51 
     52 inline RenderPart* toRenderPart(RenderObject* object)
     53 {
     54     ASSERT(!object || object->isRenderPart());
     55     return static_cast<RenderPart*>(object);
     56 }
     57 
     58 // This will catch anyone doing an unnecessary cast.
     59 void toRenderPart(const RenderPart*);
     60 
     61 }
     62 
     63 #endif
     64