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      1 /*
      2  * Copyright (C) 2007, 2008, 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 #include "config.h"
     27 
     28 #if ENABLE(VIDEO)
     29 #include "RenderMedia.h"
     30 
     31 #include "HTMLMediaElement.h"
     32 #include "RenderView.h"
     33 
     34 namespace WebCore {
     35 
     36 RenderMedia::RenderMedia(HTMLMediaElement* video)
     37     : RenderImage(video)
     38 {
     39     setImageResource(RenderImageResource::create());
     40 }
     41 
     42 RenderMedia::RenderMedia(HTMLMediaElement* video, const IntSize& intrinsicSize)
     43     : RenderImage(video)
     44 {
     45     setImageResource(RenderImageResource::create());
     46     setIntrinsicSize(intrinsicSize);
     47 }
     48 
     49 RenderMedia::~RenderMedia()
     50 {
     51 }
     52 
     53 HTMLMediaElement* RenderMedia::mediaElement() const
     54 {
     55     return static_cast<HTMLMediaElement*>(node());
     56 }
     57 
     58 void RenderMedia::layout()
     59 {
     60     IntSize oldSize = contentBoxRect().size();
     61 
     62     RenderImage::layout();
     63 
     64     RenderBox* controlsRenderer = toRenderBox(m_children.firstChild());
     65     if (!controlsRenderer)
     66         return;
     67 
     68     IntSize newSize = contentBoxRect().size();
     69     if (newSize == oldSize && !controlsRenderer->needsLayout())
     70         return;
     71 
     72     // When calling layout() on a child node, a parent must either push a LayoutStateMaintainter, or
     73     // call view()->disableLayoutState().  Since using a LayoutStateMaintainer is slightly more efficient,
     74     // and this method will be called many times per second during playback, use a LayoutStateMaintainer:
     75     LayoutStateMaintainer statePusher(view(), this, IntSize(x(), y()), hasTransform() || hasReflection() || style()->isFlippedBlocksWritingMode());
     76 
     77     controlsRenderer->setLocation(borderLeft() + paddingLeft(), borderTop() + paddingTop());
     78     controlsRenderer->style()->setHeight(Length(newSize.height(), Fixed));
     79     controlsRenderer->style()->setWidth(Length(newSize.width(), Fixed));
     80     controlsRenderer->setNeedsLayout(true, false);
     81     controlsRenderer->layout();
     82     setChildNeedsLayout(false);
     83 
     84     statePusher.pop();
     85 }
     86 
     87 } // namespace WebCore
     88 
     89 #endif
     90