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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 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 "RenderPart.h"
     27 
     28 namespace WebCore {
     29 
     30 class MouseEvent;
     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     bool pluginCrashedOrWasMissing() const;
     40 
     41     void setShowsMissingPluginIndicator();
     42     void setShowsCrashedPluginIndicator();
     43     bool showsMissingPluginIndicator() const { return m_showsMissingPluginIndicator; }
     44 
     45     // FIXME: This belongs on HTMLObjectElement.
     46     bool hasFallbackContent() const { return m_hasFallbackContent; }
     47     void setHasFallbackContent(bool hasFallbackContent) { m_hasFallbackContent = hasFallbackContent; }
     48 
     49     void handleMissingPluginIndicatorEvent(Event*);
     50 
     51 #if USE(ACCELERATED_COMPOSITING)
     52     virtual bool allowsAcceleratedCompositing() const;
     53 #endif
     54 
     55 private:
     56     virtual const char* renderName() const { return "RenderEmbeddedObject"; }
     57     virtual bool isEmbeddedObject() const { return true; }
     58 
     59     virtual void paintReplaced(PaintInfo&, int, int);
     60     virtual void paint(PaintInfo& paintInfo, int, int);
     61 
     62 #if USE(ACCELERATED_COMPOSITING)
     63     virtual bool requiresLayer() const;
     64 #endif
     65 
     66     virtual void layout();
     67     virtual void viewCleared();
     68 
     69     void setMissingPluginIndicatorIsPressed(bool);
     70     bool isInMissingPluginIndicator(MouseEvent*);
     71     bool getReplacementTextGeometry(int tx, int ty, FloatRect& contentRect, Path&, FloatRect& replacementTextRect, Font&, TextRun&, float& textWidth);
     72 
     73     String m_replacementText;
     74     bool m_hasFallbackContent; // FIXME: This belongs on HTMLObjectElement.
     75     bool m_showsMissingPluginIndicator;
     76     bool m_missingPluginIndicatorIsPressed;
     77     bool m_mouseDownWasInMissingPluginIndicator;
     78 };
     79 
     80 inline RenderEmbeddedObject* toRenderEmbeddedObject(RenderObject* object)
     81 {
     82     ASSERT(!object || !strcmp(object->renderName(), "RenderEmbeddedObject"));
     83     return static_cast<RenderEmbeddedObject*>(object);
     84 }
     85 
     86 // This will catch anyone doing an unnecessary cast.
     87 void toRenderEmbeddedObject(const RenderEmbeddedObject*);
     88 
     89 } // namespace WebCore
     90 
     91 #endif // RenderEmbeddedObject_h
     92