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
28 namespace WebCore {
29
30 // Renderer for frames via RenderFrameBase, and plug-ins via RenderEmbeddedObject.
31 class RenderPart : public RenderWidget {
32 public:
33 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 protected:
44 #if USE(ACCELERATED_COMPOSITING)
45 virtual bool requiresLayer() const;
46 #endif
47
48 private:
isRenderPart()49 virtual bool isRenderPart() const { return true; }
renderName()50 virtual const char* renderName() const { return "RenderPart"; }
51 };
52
toRenderPart(RenderObject * object)53 inline RenderPart* toRenderPart(RenderObject* object)
54 {
55 ASSERT(!object || object->isRenderPart());
56 return static_cast<RenderPart*>(object);
57 }
58
59 // This will catch anyone doing an unnecessary cast.
60 void toRenderPart(const RenderPart*);
61
62 }
63
64 #endif
65