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 "RenderFlowThread.h"
33#include "RenderView.h"
34#include <wtf/StackStats.h>
35
36namespace WebCore {
37
38RenderMedia::RenderMedia(HTMLMediaElement* video)
39    : RenderImage(video)
40{
41    setImageResource(RenderImageResource::create());
42}
43
44RenderMedia::RenderMedia(HTMLMediaElement* video, const IntSize& intrinsicSize)
45    : RenderImage(video)
46{
47    setImageResource(RenderImageResource::create());
48    setIntrinsicSize(intrinsicSize);
49}
50
51RenderMedia::~RenderMedia()
52{
53}
54
55HTMLMediaElement* RenderMedia::mediaElement() const
56{
57    return toMediaElement(node());
58}
59
60void RenderMedia::layout()
61{
62    StackStats::LayoutCheckPoint layoutCheckPoint;
63    LayoutSize oldSize = contentBoxRect().size();
64
65    RenderImage::layout();
66
67    RenderBox* controlsRenderer = toRenderBox(m_children.firstChild());
68    if (!controlsRenderer)
69        return;
70
71    bool controlsNeedLayout = controlsRenderer->needsLayout();
72    // If the region chain has changed we also need to relayout the controls to update the region box info.
73    // FIXME: We can do better once we compute region box info for RenderReplaced, not only for RenderBlock.
74    const RenderFlowThread* flowThread = flowThreadContainingBlock();
75    if (flowThread && !controlsNeedLayout) {
76        if (flowThread->pageLogicalSizeChanged())
77            controlsNeedLayout = true;
78    }
79
80    LayoutSize newSize = contentBoxRect().size();
81    if (newSize == oldSize && !controlsNeedLayout)
82        return;
83
84    // When calling layout() on a child node, a parent must either push a LayoutStateMaintainter, or
85    // instantiate LayoutStateDisabler. Since using a LayoutStateMaintainer is slightly more efficient,
86    // and this method will be called many times per second during playback, use a LayoutStateMaintainer:
87    LayoutStateMaintainer statePusher(view(), this, locationOffset(), hasTransform() || hasReflection() || style()->isFlippedBlocksWritingMode());
88
89    controlsRenderer->setLocation(LayoutPoint(borderLeft(), borderTop()) + LayoutSize(paddingLeft(), paddingTop()));
90    controlsRenderer->style()->setHeight(Length(newSize.height(), Fixed));
91    controlsRenderer->style()->setWidth(Length(newSize.width(), Fixed));
92    controlsRenderer->setNeedsLayout(true, MarkOnlyThis);
93    controlsRenderer->layout();
94    setChildNeedsLayout(false);
95
96    statePusher.pop();
97}
98
99void RenderMedia::paintReplaced(PaintInfo&, const LayoutPoint&)
100{
101}
102
103} // namespace WebCore
104
105#endif
106