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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) 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:
     54     virtual const char* renderName() const OVERRIDE { return "RenderEmbeddedObject"; }
     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