1 /*
2 * Copyright (C) 2011 Research In Motion Limited. All rights reserved.
3 * Copyright (C) 2013 Apple Inc. All rights reserved.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 */
20
21 #include "config.h"
22 #include "core/svg/graphics/SVGImageCache.h"
23
24 #include "core/fetch/ImageResource.h"
25 #include "core/frame/FrameView.h"
26 #include "core/html/HTMLImageElement.h"
27 #include "core/page/Page.h"
28 #include "core/rendering/svg/RenderSVGRoot.h"
29 #include "core/svg/graphics/SVGImage.h"
30 #include "core/svg/graphics/SVGImageForContainer.h"
31 #include "platform/graphics/GraphicsContext.h"
32 #include "platform/graphics/ImageBuffer.h"
33
34 namespace blink {
35
SVGImageCache(SVGImage * svgImage)36 SVGImageCache::SVGImageCache(SVGImage* svgImage)
37 : m_svgImage(svgImage)
38 {
39 ASSERT(m_svgImage);
40 }
41
~SVGImageCache()42 SVGImageCache::~SVGImageCache()
43 {
44 m_imageForContainerMap.clear();
45 }
46
removeClientFromCache(const ImageResourceClient * client)47 void SVGImageCache::removeClientFromCache(const ImageResourceClient* client)
48 {
49 ASSERT(client);
50 m_imageForContainerMap.remove(client);
51 }
52
setContainerSizeForRenderer(const ImageResourceClient * client,const IntSize & containerSize,float containerZoom)53 void SVGImageCache::setContainerSizeForRenderer(const ImageResourceClient* client, const IntSize& containerSize, float containerZoom)
54 {
55 ASSERT(client);
56 ASSERT(!containerSize.isEmpty());
57 ASSERT(containerZoom);
58
59 FloatSize containerSizeWithoutZoom(containerSize);
60 containerSizeWithoutZoom.scale(1 / containerZoom);
61
62 m_imageForContainerMap.set(client, SVGImageForContainer::create(m_svgImage, containerSizeWithoutZoom, containerZoom));
63 }
64
imageSizeForRenderer(const RenderObject * renderer) const65 IntSize SVGImageCache::imageSizeForRenderer(const RenderObject* renderer) const
66 {
67 IntSize imageSize = m_svgImage->size();
68 if (!renderer)
69 return imageSize;
70
71 ImageForContainerMap::const_iterator it = m_imageForContainerMap.find(renderer);
72 if (it == m_imageForContainerMap.end())
73 return imageSize;
74
75 RefPtr<SVGImageForContainer> imageForContainer = it->value;
76 ASSERT(!imageForContainer->size().isEmpty());
77 return imageForContainer->size();
78 }
79
80 // FIXME: This doesn't take into account the animation timeline so animations will not
81 // restart on page load, nor will two animations in different pages have different timelines.
imageForRenderer(const RenderObject * renderer)82 Image* SVGImageCache::imageForRenderer(const RenderObject* renderer)
83 {
84 if (!renderer)
85 return Image::nullImage();
86
87 ImageForContainerMap::iterator it = m_imageForContainerMap.find(renderer);
88 if (it == m_imageForContainerMap.end())
89 return Image::nullImage();
90
91 RefPtr<SVGImageForContainer> imageForContainer = it->value;
92 ASSERT(!imageForContainer->size().isEmpty());
93
94 Node* node = renderer->node();
95 if (node && isHTMLImageElement(node)) {
96 const AtomicString& urlString = toHTMLImageElement(node)->imageSourceURL();
97 KURL url = node->document().completeURL(urlString);
98 imageForContainer->setURL(url);
99 }
100
101 return imageForContainer.get();
102 }
103
104 } // namespace blink
105