RenderMedia.cpp revision 2bde8e466a4451c7319e3a072d118917957d6554 
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 "MediaControlElements.h"
33#include "MediaControls.h"
34#include "RenderView.h"
35
36namespace WebCore {
37
38RenderMedia::RenderMedia(HTMLMediaElement* video)
39    : RenderImage(video)
40    , m_controls(new MediaControls(video))
41{
42    setImageResource(RenderImageResource::create());
43}
44
45RenderMedia::RenderMedia(HTMLMediaElement* video, const IntSize& intrinsicSize)
46    : RenderImage(video)
47    , m_controls(new MediaControls(video))
48{
49    setImageResource(RenderImageResource::create());
50    setIntrinsicSize(intrinsicSize);
51}
52
53RenderMedia::~RenderMedia()
54{
55}
56
57void RenderMedia::destroy()
58{
59    m_controls->destroy();
60    RenderImage::destroy();
61}
62
63HTMLMediaElement* RenderMedia::mediaElement() const
64{
65    return static_cast<HTMLMediaElement*>(node());
66}
67
68void RenderMedia::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
69{
70    RenderImage::styleDidChange(diff, oldStyle);
71    m_controls->updateStyle();
72}
73
74void RenderMedia::layout()
75{
76    IntSize oldSize = contentBoxRect().size();
77
78    RenderImage::layout();
79
80    RenderBox* controlsRenderer = m_controls->renderBox();
81    if (!controlsRenderer)
82        return;
83    IntSize newSize = contentBoxRect().size();
84    if (newSize == oldSize && !controlsRenderer->needsLayout())
85        return;
86
87    // When calling layout() on a child node, a parent must either push a LayoutStateMaintainter, or
88    // call view()->disableLayoutState().  Since using a LayoutStateMaintainer is slightly more efficient,
89    // and this method will be called many times per second during playback, use a LayoutStateMaintainer:
90    LayoutStateMaintainer statePusher(view(), this, IntSize(x(), y()), hasTransform() || hasReflection() || style()->isFlippedBlocksWritingMode());
91
92    controlsRenderer->setLocation(borderLeft() + paddingLeft(), borderTop() + paddingTop());
93    controlsRenderer->style()->setHeight(Length(newSize.height(), Fixed));
94    controlsRenderer->style()->setWidth(Length(newSize.width(), Fixed));
95    controlsRenderer->setNeedsLayout(true, false);
96    controlsRenderer->layout();
97    setChildNeedsLayout(false);
98
99    statePusher.pop();
100}
101
102void RenderMedia::updateFromElement()
103{
104    m_controls->update();
105}
106
107} // namespace WebCore
108
109#endif
110