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#include "core/rendering/RenderMedia.h"
29
30#include "core/html/HTMLMediaElement.h"
31#include "core/rendering/LayoutRectRecorder.h"
32#include "core/rendering/RenderFlowThread.h"
33#include "core/rendering/RenderView.h"
34
35namespace WebCore {
36
37RenderMedia::RenderMedia(HTMLMediaElement* video)
38    : RenderImage(video)
39{
40    setImageResource(RenderImageResource::create());
41}
42
43RenderMedia::~RenderMedia()
44{
45}
46
47HTMLMediaElement* RenderMedia::mediaElement() const
48{
49    return toHTMLMediaElement(node());
50}
51
52void RenderMedia::layout()
53{
54    LayoutRectRecorder recorder(*this);
55    LayoutSize oldSize = contentBoxRect().size();
56
57    RenderImage::layout();
58
59    RenderBox* controlsRenderer = toRenderBox(m_children.firstChild());
60    if (!controlsRenderer)
61        return;
62
63    bool controlsNeedLayout = controlsRenderer->needsLayout();
64    // If the region chain has changed we also need to relayout the controls to update the region box info.
65    // FIXME: We can do better once we compute region box info for RenderReplaced, not only for RenderBlock.
66    const RenderFlowThread* flowThread = flowThreadContainingBlock();
67    if (flowThread && !controlsNeedLayout) {
68        if (flowThread->pageLogicalSizeChanged())
69            controlsNeedLayout = true;
70    }
71
72    LayoutSize newSize = contentBoxRect().size();
73    if (newSize == oldSize && !controlsNeedLayout)
74        return;
75
76    // When calling layout() on a child node, a parent must either push a LayoutStateMaintainter, or
77    // instantiate LayoutStateDisabler. Since using a LayoutStateMaintainer is slightly more efficient,
78    // and this method will be called many times per second during playback, use a LayoutStateMaintainer:
79    LayoutStateMaintainer statePusher(view(), this, locationOffset(), hasTransform() || hasReflection() || style()->isFlippedBlocksWritingMode());
80
81    controlsRenderer->setLocation(LayoutPoint(borderLeft(), borderTop()) + LayoutSize(paddingLeft(), paddingTop()));
82    controlsRenderer->style()->setHeight(Length(newSize.height(), Fixed));
83    controlsRenderer->style()->setWidth(Length(newSize.width(), Fixed));
84    controlsRenderer->forceLayout();
85    clearNeedsLayout();
86
87    statePusher.pop();
88}
89
90void RenderMedia::paintReplaced(PaintInfo&, const LayoutPoint&)
91{
92}
93
94} // namespace WebCore
95