1/*
2 * Copyright (C) 1999 Lars Knoll <knoll@kde.org>
3 * Copyright (C) 1999 Antti Koivisto <koivisto@kde.org>
4 * Copyright (C) 2000 Dirk Mueller <mueller@kde.org>
5 * Copyright (C) 2006 Allan Sandfeld Jensen <kde@carewolf.com>
6 * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
7 * Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009, 2010 Apple Inc. All rights reserved.
8 * Copyright (C) 2010 Google Inc. All rights reserved.
9 * Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
10 *
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Library General Public
13 * License as published by the Free Software Foundation; either
14 * version 2 of the License, or (at your option) any later version.
15 *
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Library General Public License for more details.
20 *
21 * You should have received a copy of the GNU Library General Public License
22 * along with this library; see the file COPYING.LIB. If not, write to
23 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 * Boston, MA 02110-1301, USA.
25 *
26 */
27
28#include "config.h"
29#include "RenderImageResource.h"
30
31#include "CachedImage.h"
32#include "Image.h"
33#include "RenderElement.h"
34#include "RenderImage.h"
35#include "RenderImageResourceStyleImage.h"
36#include <wtf/IsoMallocInlines.h>
37
38namespace WebCore {
39
40WTF_MAKE_ISO_ALLOCATED_IMPL(RenderImageResource);
41
42RenderImageResource::RenderImageResource()
43{
44}
45
46void RenderImageResource::initialize(RenderElement& renderer, CachedImage* styleCachedImage)
47{
48 ASSERT(!m_renderer);
49 ASSERT(!m_cachedImage);
50 m_renderer = makeWeakPtr(renderer);
51 m_cachedImage = styleCachedImage;
52 m_cachedImageRemoveClientIsNeeded = !styleCachedImage;
53}
54
55void RenderImageResource::shutdown()
56{
57 image()->stopAnimation();
58 setCachedImage(nullptr);
59}
60
61void RenderImageResource::setCachedImage(CachedImage* newImage)
62{
63 if (m_cachedImage == newImage)
64 return;
65
66 ASSERT(m_renderer);
67 if (m_cachedImage && m_cachedImageRemoveClientIsNeeded)
68 m_cachedImage->removeClient(*renderer());
69 m_cachedImage = newImage;
70 m_cachedImageRemoveClientIsNeeded = true;
71 if (!m_cachedImage)
72 return;
73
74 m_cachedImage->addClient(*renderer());
75 if (m_cachedImage->errorOccurred())
76 renderer()->imageChanged(m_cachedImage.get());
77}
78
79void RenderImageResource::resetAnimation()
80{
81 if (!m_cachedImage)
82 return;
83
84 ASSERT(m_renderer);
85 image()->resetAnimation();
86
87 if (!renderer()->needsLayout())
88 renderer()->repaint();
89}
90
91RefPtr<Image> RenderImageResource::image(const IntSize&) const
92{
93 if (!m_cachedImage)
94 return &Image::nullImage();
95 if (auto image = m_cachedImage->imageForRenderer(renderer()))
96 return image;
97 return &Image::nullImage();
98}
99
100void RenderImageResource::setContainerContext(const IntSize& imageContainerSize, const URL& imageURL)
101{
102 if (!m_cachedImage)
103 return;
104 ASSERT(m_renderer);
105 m_cachedImage->setContainerContextForClient(*renderer(), imageContainerSize, renderer()->style().effectiveZoom(), imageURL);
106}
107
108LayoutSize RenderImageResource::imageSize(float multiplier, CachedImage::SizeType type) const
109{
110 if (!m_cachedImage)
111 return LayoutSize();
112 LayoutSize size = m_cachedImage->imageSizeForRenderer(renderer(), multiplier, type);
113 if (is<RenderImage>(renderer()))
114 size.scale(downcast<RenderImage>(*renderer()).imageDevicePixelRatio());
115 return size;
116}
117
118} // namespace WebCore
119