author | Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com> |
Mon, 30 Mar 2009 12:54:55 +0300 | |
changeset 0 | dd21522fd290 |
child 13 | 10e98eab6f85 |
permissions | -rw-r--r-- |
0
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/* |
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Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de) |
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Copyright (C) 2001 Dirk Mueller (mueller@kde.org) |
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Copyright (C) 2002 Waldo Bastian (bastian@kde.org) |
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Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com) |
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Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved. |
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|
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This library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Library General Public |
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License as published by the Free Software Foundation; either |
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version 2 of the License, or (at your option) any later version. |
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|
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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Library General Public License for more details. |
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|
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You should have received a copy of the GNU Library General Public License |
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along with this library; see the file COPYING.LIB. If not, write to |
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
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Boston, MA 02110-1301, USA. |
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*/ |
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#include "config.h" |
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#include "CachedImage.h" |
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#include "BitmapImage.h" |
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#include "Cache.h" |
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#include "CachedResourceClient.h" |
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#include "CachedResourceClientWalker.h" |
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#include "DocLoader.h" |
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#include "Frame.h" |
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#include "Request.h" |
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#include "SystemTime.h" |
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#include <wtf/Vector.h> |
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#if PLATFORM(CG) |
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#include "PDFDocumentImage.h" |
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#endif |
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#if ENABLE(SVG_EXPERIMENTAL_FEATURES) |
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#if PLATFORM(MAC) || PLATFORM(QT) |
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#include "SVGImage.h" |
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#endif |
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#endif |
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using std::max; |
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namespace WebCore { |
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CachedImage::CachedImage(DocLoader* docLoader, const String& url, bool forCache) |
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: CachedResource(url, ImageResource, forCache) |
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{ |
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m_image = 0; |
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m_status = Unknown; |
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if (!docLoader || docLoader->autoLoadImages()) { |
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m_loading = true; |
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cache()->loader()->load(docLoader, this, true); |
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} else |
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m_loading = false; |
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} |
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|
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CachedImage::CachedImage(Image* image) |
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: CachedResource(String(), ImageResource, false /* not for cache */) |
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{ |
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m_image = image; |
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m_status = Cached; |
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m_loading = false; |
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} |
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CachedImage::~CachedImage() |
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{ |
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delete m_image; |
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} |
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void CachedImage::ref(CachedResourceClient* c) |
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{ |
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CachedResource::ref(c); |
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if (!imageRect().isEmpty()) |
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c->imageChanged(this); |
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if (!m_loading) |
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c->notifyFinished(this); |
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} |
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|
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void CachedImage::allReferencesRemoved() |
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{ |
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if (m_image && !m_errorOccurred) |
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m_image->resetAnimation(); |
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} |
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static Image* brokenImage() |
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{ |
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static Image* brokenImage; |
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if (!brokenImage) |
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brokenImage = Image::loadPlatformResource("missingImage"); |
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return brokenImage; |
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} |
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static Image* nullImage() |
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{ |
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static BitmapImage nullImage; |
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return &nullImage; |
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} |
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Image* CachedImage::image() const |
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{ |
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if (m_errorOccurred) |
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return brokenImage(); |
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|
111 |
|
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112 |
if (m_image) |
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return m_image; |
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114 |
|
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115 |
return nullImage(); |
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} |
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117 |
|
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118 |
IntSize CachedImage::imageSize() const |
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119 |
{ |
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return (m_image ? m_image->size() : IntSize()); |
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} |
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122 |
|
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IntRect CachedImage::imageRect() const |
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124 |
{ |
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return (m_image ? m_image->rect() : IntRect()); |
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126 |
} |
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127 |
|
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void CachedImage::notifyObservers() |
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129 |
{ |
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CachedResourceClientWalker w(m_clients); |
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while (CachedResourceClient *c = w.next()) |
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c->imageChanged(this); |
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} |
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134 |
|
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void CachedImage::clear() |
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136 |
{ |
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destroyDecodedData(); |
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delete m_image; |
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m_image = 0; |
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setEncodedSize(0); |
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141 |
} |
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142 |
|
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143 |
|
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144 |
|
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145 |
inline void CachedImage::createImage() |
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146 |
{ |
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// Create the image if it doesn't yet exist. |
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148 |
if (m_image) |
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149 |
return; |
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150 |
#if PLATFORM(CG) |
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if (m_response.mimeType() == "application/pdf") { |
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m_image = new PDFDocumentImage; |
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153 |
return; |
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154 |
} |
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155 |
#endif |
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#if ENABLE(SVG_EXPERIMENTAL_FEATURES) |
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#if PLATFORM(MAC) || PLATFORM(QT) |
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if (m_response.mimeType() == "image/svg+xml") { |
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159 |
m_image = new SVGImage(this); |
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160 |
return; |
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|
161 |
} |
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162 |
#endif |
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163 |
#endif |
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164 |
m_image = new BitmapImage(this); |
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|
165 |
|
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|
166 |
#if PLATFORM(SYMBIAN) |
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167 |
m_image->setMimeType(m_response.mimeType()); |
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168 |
#endif |
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|
169 |
|
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170 |
} |
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|
171 |
|
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172 |
void CachedImage::data(PassRefPtr<SharedBuffer> data, bool allDataReceived) |
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173 |
{ |
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174 |
m_data = data; |
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|
175 |
|
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176 |
createImage(); |
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177 |
|
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178 |
bool sizeAvailable = false; |
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179 |
|
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180 |
// Have the image update its data from its internal buffer. |
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|
181 |
// It will not do anything now, but will delay decoding until |
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182 |
// queried for info (like size or specific image frames). |
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183 |
sizeAvailable = m_image->setData(m_data, allDataReceived); |
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|
184 |
|
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|
185 |
// Go ahead and tell our observers to try to draw if we have either |
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|
186 |
// received all the data or the size is known. Each chunk from the |
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187 |
// network causes observers to repaint, which will force that chunk |
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188 |
// to decode. |
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|
189 |
if (sizeAvailable || allDataReceived) { |
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|
190 |
if (m_image->isNull()) { |
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|
191 |
// FIXME: I'm not convinced this case can even be hit. |
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|
192 |
error(); |
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|
193 |
if (inCache()) |
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|
194 |
cache()->remove(this); |
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|
195 |
return; |
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|
196 |
} |
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|
197 |
|
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|
198 |
notifyObservers(); |
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|
199 |
|
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200 |
if (m_image) |
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|
201 |
setEncodedSize(m_image->data() ? m_image->data()->size() : 0); |
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|
202 |
} |
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|
203 |
|
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|
204 |
if (allDataReceived) { |
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|
205 |
m_loading = false; |
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|
206 |
|
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|
207 |
#if !PLATFORM(SYMBIAN) |
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208 |
checkNotify(); |
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|
209 |
#endif |
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|
210 |
} |
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|
211 |
} |
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|
212 |
|
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|
213 |
void CachedImage::error() |
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|
214 |
{ |
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|
215 |
clear(); |
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|
216 |
m_errorOccurred = true; |
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|
217 |
notifyObservers(); |
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|
218 |
m_loading = false; |
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|
219 |
checkNotify(); |
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|
220 |
} |
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|
221 |
|
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|
222 |
void CachedImage::checkNotify() |
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{ |
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if (m_loading) |
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return; |
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CachedResourceClientWalker w(m_clients); |
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while (CachedResourceClient* c = w.next()) |
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c->notifyFinished(this); |
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} |
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void CachedImage::destroyDecodedData() |
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{ |
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if (m_image && !m_errorOccurred) |
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m_image->destroyDecodedData(); |
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} |
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void CachedImage::decodedSizeChanged(const Image* image, int delta) |
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{ |
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if (image != m_image) |
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return; |
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setDecodedSize(decodedSize() + delta); |
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} |
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|
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void CachedImage::didDraw(const Image* image) |
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{ |
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if (image != m_image) |
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return; |
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double timeStamp = Frame::currentPaintTimeStamp(); |
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if (!timeStamp) // If didDraw is called outside of a Frame paint. |
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timeStamp = currentTime(); |
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CachedResource::didAccessDecodedData(timeStamp); |
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} |
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bool CachedImage::shouldPauseAnimation(const Image* image) |
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{ |
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if (image != m_image) |
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return false; |
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CachedResourceClientWalker w(m_clients); |
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while (CachedResourceClient* c = w.next()) { |
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if (c->willRenderImage(this)) |
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return false; |
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} |
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return true; |
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} |
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|
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void CachedImage::animationAdvanced(const Image* image) |
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{ |
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if (image == m_image) |
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notifyObservers(); |
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} |
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#if PLATFORM(SYMBIAN) |
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void CachedImage::decoderError( int /*error*/ ) |
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{ |
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|
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} |
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|
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void CachedImage::partialImage() |
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{ |
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notifyObservers(); |
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} |
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|
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void CachedImage::imageReady(int size_) |
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{ |
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setDecodedSize(size_); |
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notifyObservers(); |
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checkNotify(); |
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} |
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|
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void CachedImage::animationFrameReady(int size_) |
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{ |
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setDecodedSize(size_); |
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notifyObservers(); |
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} |
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|
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void CachedImage::setMimeType(const String& mime_) |
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{ |
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m_response.setMimeType(mime_); |
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} |
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#endif |
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|
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} //namespace WebCore |