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1 /*
2  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3  *           (C) 2000 Simon Hausmann <hausmann@kde.org>
4  * Copyright (C) 2004, 2005, 2006, 2008, 2009, 2010, 2012 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 RenderEmbeddedObject_h
24 #define RenderEmbeddedObject_h
25 
26 #include "core/rendering/RenderPart.h"
27 
28 namespace WebCore {
29 
30 class TextRun;
31 
32 // Renderer for embeds and objects, often, but not always, rendered via plug-ins.
33 // For example, <embed src="foo.html"> does not invoke a plug-in.
34 class RenderEmbeddedObject : public RenderPart {
35 public:
36     RenderEmbeddedObject(Element*);
37     virtual ~RenderEmbeddedObject();
38 
39     enum PluginUnavailabilityReason {
40         PluginMissing,
41         PluginBlockedByContentSecurityPolicy,
42     };
43     void setPluginUnavailabilityReason(PluginUnavailabilityReason);
44     bool showsUnavailablePluginIndicator() const;
45 
46 protected:
47     virtual void paintReplaced(PaintInfo&, const LayoutPoint&) OVERRIDE FINAL;
48     virtual void paint(PaintInfo&, const LayoutPoint&) OVERRIDE FINAL;
49 
50 protected:
51     virtual void layout() OVERRIDE FINAL;
52 
53 private:
renderName()54     virtual const char* renderName() const OVERRIDE { return "RenderEmbeddedObject"; }
isEmbeddedObject()55     virtual bool isEmbeddedObject() const OVERRIDE FINAL { return true; }
56     virtual RenderBox* embeddedContentBox() const OVERRIDE FINAL;
57 
58     void paintSnapshotImage(PaintInfo&, const LayoutPoint&, Image*);
59     virtual void paintContents(PaintInfo&, const LayoutPoint&) OVERRIDE FINAL;
60 
61     virtual LayerType layerTypeRequired() const OVERRIDE FINAL;
62 
63     virtual bool scroll(ScrollDirection, ScrollGranularity, float multiplier) OVERRIDE FINAL;
64 
65     bool getReplacementTextGeometry(const LayoutPoint& accumulatedOffset, FloatRect& contentRect, Path&, FloatRect& replacementTextRect, Font&, TextRun&, float& textWidth) const;
66 
67     virtual CompositingReasons additionalCompositingReasons(CompositingTriggerFlags) const OVERRIDE;
68 
69     bool m_showsUnavailablePluginIndicator;
70     PluginUnavailabilityReason m_pluginUnavailabilityReason;
71     String m_unavailablePluginReplacementText;
72 };
73 
74 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderEmbeddedObject, isEmbeddedObject());
75 
76 } // namespace WebCore
77 
78 #endif // RenderEmbeddedObject_h
79