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1 /* | 1 /* |
2 Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de) | 2 Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de) |
3 Copyright (C) 2001 Dirk Mueller (mueller@kde.org) | 3 Copyright (C) 2001 Dirk Mueller (mueller@kde.org) |
4 Copyright (C) 2002 Waldo Bastian (bastian@kde.org) | 4 Copyright (C) 2002 Waldo Bastian (bastian@kde.org) |
5 Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
rights reserved. | 5 Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
rights reserved. |
6 Copyright (C) 2009 Torch Mobile Inc. http://www.torchmobile.com/ | 6 Copyright (C) 2009 Torch Mobile Inc. http://www.torchmobile.com/ |
7 | 7 |
8 This library is free software; you can redistribute it and/or | 8 This library is free software; you can redistribute it and/or |
9 modify it under the terms of the GNU Library General Public | 9 modify it under the terms of the GNU Library General Public |
10 License as published by the Free Software Foundation; either | 10 License as published by the Free Software Foundation; either |
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139 if (visibility == ResourcePriority::Visible) | 139 if (visibility == ResourcePriority::Visible) |
140 priority = ResourceLoadPriorityHigh; | 140 priority = ResourceLoadPriorityHigh; |
141 | 141 |
142 // Resources before the first image are considered "early" in the document | 142 // Resources before the first image are considered "early" in the document |
143 // and resources after the first image are "late" in the document. Importan
t to | 143 // and resources after the first image are "late" in the document. Importan
t to |
144 // note that this is based on when the preload scanner discovers a resource | 144 // note that this is based on when the preload scanner discovers a resource |
145 // for the most part so the main parser may not have reached the image eleme
nt yet. | 145 // for the most part so the main parser may not have reached the image eleme
nt yet. |
146 if (type == Resource::Image) | 146 if (type == Resource::Image) |
147 m_imageFetched = true; | 147 m_imageFetched = true; |
148 | 148 |
149 // Special handling for scripts. | 149 if (FetchRequest::IdleLoad == request.defer()) { |
150 // Default/Parser-Blocking/Preload early in document: High (set in typeToPri
ority) | 150 priority = ResourceLoadPriorityVeryLow; |
151 // Async/Defer: Low Priority (applies to both preload and parser-inserted) | 151 } else if (type == Resource::Script) { |
152 // Preload late in document: Medium | 152 // Special handling for scripts. |
153 if (type == Resource::Script) { | 153 // Default/Parser-Blocking/Preload early in document: High (set in typeT
oPriority) |
| 154 // Async/Defer: Low Priority (applies to both preload and parser-inserte
d) |
| 155 // Preload late in document: Medium |
154 if (FetchRequest::LazyLoad == request.defer()) | 156 if (FetchRequest::LazyLoad == request.defer()) |
155 priority = ResourceLoadPriorityLow; | 157 priority = ResourceLoadPriorityLow; |
156 else if (request.forPreload() && m_imageFetched) | 158 else if (request.forPreload() && m_imageFetched) |
157 priority = ResourceLoadPriorityMedium; | 159 priority = ResourceLoadPriorityMedium; |
158 } else if (FetchRequest::LazyLoad == request.defer()) { | 160 } else if (FetchRequest::LazyLoad == request.defer()) { |
159 priority = ResourceLoadPriorityVeryLow; | 161 priority = ResourceLoadPriorityVeryLow; |
160 } | 162 } |
161 | 163 |
162 // A manually set priority acts as a floor. This is used to ensure that sync
hronous requests | 164 // A manually set priority acts as a floor. This is used to ensure that sync
hronous requests |
163 // are always given the highest possible priority, as well as to ensure that
there isn't priority | 165 // are always given the highest possible priority, as well as to ensure that
there isn't priority |
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1333 visitor->trace(m_context); | 1335 visitor->trace(m_context); |
1334 visitor->trace(m_archive); | 1336 visitor->trace(m_archive); |
1335 visitor->trace(m_loaders); | 1337 visitor->trace(m_loaders); |
1336 visitor->trace(m_nonBlockingLoaders); | 1338 visitor->trace(m_nonBlockingLoaders); |
1337 visitor->trace(m_documentResources); | 1339 visitor->trace(m_documentResources); |
1338 visitor->trace(m_preloads); | 1340 visitor->trace(m_preloads); |
1339 visitor->trace(m_resourceTimingInfoMap); | 1341 visitor->trace(m_resourceTimingInfoMap); |
1340 } | 1342 } |
1341 | 1343 |
1342 } // namespace blink | 1344 } // namespace blink |
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