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      1 /*
      2  * Copyright (C) 2007, 2009, 2010 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef RenderVideo_h
     27 #define RenderVideo_h
     28 
     29 #if ENABLE(VIDEO)
     30 
     31 #include "RenderMedia.h"
     32 
     33 namespace WebCore {
     34 
     35 class HTMLMediaElement;
     36 class HTMLVideoElement;
     37 #if USE(ACCELERATED_COMPOSITING)
     38 class GraphicsLayer;
     39 #endif
     40 
     41 class RenderVideo : public RenderMedia {
     42 public:
     43     RenderVideo(HTMLVideoElement*);
     44     virtual ~RenderVideo();
     45 
     46     void videoSizeChanged();
     47     IntRect videoBox() const;
     48 
     49 #if USE(ACCELERATED_COMPOSITING)
     50     bool supportsAcceleratedRendering() const;
     51     void acceleratedRenderingStateChanged();
     52     GraphicsLayer* videoGraphicsLayer() const;
     53 #endif
     54 
     55 private:
     56     virtual void updateFromElement();
     57     inline HTMLVideoElement* videoElement() const;
     58 
     59     virtual void intrinsicSizeChanged();
     60     virtual void imageChanged(WrappedImagePtr, const IntRect*);
     61 
     62     virtual const char* renderName() const { return "RenderVideo"; }
     63 
     64     virtual bool requiresLayer() const { return true; }
     65     virtual bool isVideo() const { return true; }
     66 
     67     virtual void paintReplaced(PaintInfo&, int tx, int ty);
     68 
     69     virtual void layout();
     70 
     71     virtual int calcReplacedWidth(bool includeMaxWidth = true) const;
     72     virtual int calcReplacedHeight() const;
     73     virtual int minimumReplacedHeight() const;
     74 
     75     int calcAspectRatioWidth() const;
     76     int calcAspectRatioHeight() const;
     77 
     78     void updatePlayer();
     79 
     80     IntSize m_cachedImageSize;
     81 };
     82 
     83 inline RenderVideo* toRenderVideo(RenderObject* object)
     84 {
     85     ASSERT(!object || object->isVideo());
     86     return static_cast<RenderVideo*>(object);
     87 }
     88 
     89 // This will catch anyone doing an unnecessary cast.
     90 void toRenderVideo(const RenderVideo*);
     91 
     92 } // namespace WebCore
     93 
     94 #endif
     95 #endif // RenderVideo_h
     96