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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 #include "core/rendering/RenderMedia.h"
     30 
     31 namespace WebCore {
     32 
     33 class HTMLMediaElement;
     34 class HTMLVideoElement;
     35 
     36 class RenderVideo FINAL : public RenderMedia {
     37 public:
     38     RenderVideo(HTMLVideoElement*);
     39     virtual ~RenderVideo();
     40 
     41     IntRect videoBox() const;
     42 
     43     static IntSize defaultSize();
     44 
     45     bool supportsAcceleratedRendering() const;
     46 
     47     virtual bool shouldDisplayVideo() const;
     48 
     49 private:
     50     virtual void updateFromElement();
     51     inline HTMLVideoElement* videoElement() const;
     52 
     53     virtual void intrinsicSizeChanged();
     54     LayoutSize calculateIntrinsicSize();
     55     void updateIntrinsicSize();
     56 
     57     virtual void imageChanged(WrappedImagePtr, const IntRect*);
     58 
     59     virtual const char* renderName() const { return "RenderVideo"; }
     60 
     61     virtual bool requiresLayer() const { return true; }
     62     virtual bool isVideo() const { return true; }
     63 
     64     virtual void paintReplaced(PaintInfo&, const LayoutPoint&);
     65 
     66     virtual void layout();
     67 
     68     virtual LayoutUnit computeReplacedLogicalWidth(ShouldComputePreferred  = ComputeActual) const OVERRIDE;
     69     virtual LayoutUnit computeReplacedLogicalHeight() const;
     70     virtual LayoutUnit minimumReplacedHeight() const OVERRIDE;
     71 
     72     virtual LayoutUnit offsetLeft() const;
     73     virtual LayoutUnit offsetTop() const;
     74     virtual LayoutUnit offsetWidth() const;
     75     virtual LayoutUnit offsetHeight() const;
     76 
     77     void updatePlayer();
     78 
     79     bool acceleratedRenderingInUse();
     80 
     81     LayoutSize m_cachedImageSize;
     82 };
     83 
     84 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderVideo, isVideo());
     85 
     86 } // namespace WebCore
     87 
     88 #endif // RenderVideo_h
     89