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SVGImageLoader.cpp
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1 /*
2  Copyright (C) 2005, 2005 Alexander Kellett <lypanov@kde.org>
3  2008 Rob Buis <buis@kde.org>
4 
5  This file is part of the WebKit project
6 
7  This library is free software; you can redistribute it and/or
8  modify it under the terms of the GNU Library General Public
9  License as published by the Free Software Foundation; either
10  version 2 of the License, or (at your option) any later version.
11 
12  This library is distributed in the hope that it will be useful,
13  but WITHOUT ANY WARRANTY; without even the implied warranty of
14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  Library General Public License for more details.
16 
17  You should have received a copy of the GNU Library General Public License
18  along with this library; see the file COPYING.LIB. If not, write to
19  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20  Boston, MA 02110-1301, USA.
21 */
22 
23 #include "config.h"
24 #if ENABLE(SVG)
25 
26 #include "Attr.h"
27 #include "DocLoader.h"
28 #include "Document.h"
29 
30 #include "SVGImageElement.h"
31 #include "SVGLength.h"
32 #include "SVGNames.h"
33 
34 #include "RenderImage.h"
35 
36 namespace WebCore {
37 
38 SVGImageLoader::SVGImageLoader(SVGImageElement* node)
39  : HTMLImageLoader(node)
40 {
41 }
42 
43 SVGImageLoader::~SVGImageLoader()
44 {
45 }
46 
47 // FIXME - Refactor most of this code into WebCore::HTMLImageLoader or a shared WebCore::ImageLoader base class
48 void SVGImageLoader::updateFromElement()
49 {
50  SVGImageElement *imageElement = static_cast<SVGImageElement *>(element());
51  WebCore::Document* doc = imageElement->ownerDocument();
52 
53  CachedImage *newImage = 0;
54  if (!imageElement->href().isEmpty()) {
55  KURL uri = imageElement->baseURI();
56  if (!uri.isEmpty())
57  uri = KURL(uri, imageElement->href());
58  else
59  uri = KURL(imageElement->href());
60  newImage = doc->docLoader()->requestImage(uri.string());
61  }
62 
63  CachedImage* oldImage = image();
64  if (newImage != oldImage) {
65  setLoadingImage(newImage);
66  if (newImage)
67  newImage->addClient(this);
68  if (oldImage)
69  oldImage->removeClient(this);
70  }
71 
72  if (RenderImage* renderer = static_cast<RenderImage*>(imageElement->renderer()))
73  renderer->resetAnimation();
74 }
75 
76 void SVGImageLoader::dispatchLoadEvent()
77 {
78  if (!haveFiredLoadEvent() && image()) {
79  setHaveFiredLoadEvent(true);
80  if (image()->errorOccurred()) {
81  // FIXME: We're supposed to put the document in an "error state" per the spec.
82  } else if (static_cast<SVGImageElement*>(element())->externalResourcesRequiredBaseValue())
83  static_cast<SVGElement*>(element())->sendSVGLoadEventIfPossible(true);
84  }
85 }
86 
87 }
88 
89 #endif // ENABLE(SVG)
SVGLength.h
SVGImageElement.h
SVGNames.h
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