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1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) |
4 * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010 Apple Inc. All rights reserv ed. | 4 * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010 Apple Inc. All rights reserv ed. |
5 * | 5 * |
6 * This library is free software; you can redistribute it and/or | 6 * This library is free software; you can redistribute it and/or |
7 * modify it under the terms of the GNU Library General Public | 7 * modify it under the terms of the GNU Library General Public |
8 * License as published by the Free Software Foundation; either | 8 * License as published by the Free Software Foundation; either |
9 * version 2 of the License, or (at your option) any later version. | 9 * version 2 of the License, or (at your option) any later version. |
10 * | 10 * |
11 * This library is distributed in the hope that it will be useful, | 11 * This library is distributed in the hope that it will be useful, |
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 * Library General Public License for more details. | 14 * Library General Public License for more details. |
15 * | 15 * |
16 * You should have received a copy of the GNU Library General Public License | 16 * You should have received a copy of the GNU Library General Public License |
17 * along with this library; see the file COPYING.LIB. If not, write to | 17 * along with this library; see the file COPYING.LIB. If not, write to |
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
19 * Boston, MA 02110-1301, USA. | 19 * Boston, MA 02110-1301, USA. |
20 */ | 20 */ |
21 | 21 |
22 #include "config.h" | 22 #include "config.h" |
23 #include "core/loader/ImageLoader.h" | 23 #include "core/loader/ImageLoader.h" |
24 | 24 |
25 #include "bindings/v8/ScriptController.h" | |
25 #include "core/dom/Document.h" | 26 #include "core/dom/Document.h" |
26 #include "core/dom/Element.h" | 27 #include "core/dom/Element.h" |
28 #include "core/dom/Microtask.h" | |
27 #include "core/events/Event.h" | 29 #include "core/events/Event.h" |
28 #include "core/events/EventSender.h" | 30 #include "core/events/EventSender.h" |
29 #include "core/fetch/CrossOriginAccessControl.h" | 31 #include "core/fetch/CrossOriginAccessControl.h" |
30 #include "core/fetch/FetchRequest.h" | 32 #include "core/fetch/FetchRequest.h" |
31 #include "core/fetch/MemoryCache.h" | 33 #include "core/fetch/MemoryCache.h" |
32 #include "core/fetch/ResourceFetcher.h" | 34 #include "core/fetch/ResourceFetcher.h" |
33 #include "core/html/HTMLObjectElement.h" | 35 #include "core/frame/LocalFrame.h" |
36 #include "core/html/HTMLImageElement.h" | |
34 #include "core/html/parser/HTMLParserIdioms.h" | 37 #include "core/html/parser/HTMLParserIdioms.h" |
35 #include "core/rendering/RenderImage.h" | 38 #include "core/rendering/RenderImage.h" |
36 #include "core/rendering/RenderVideo.h" | 39 #include "core/rendering/RenderVideo.h" |
37 #include "core/rendering/svg/RenderSVGImage.h" | 40 #include "core/rendering/svg/RenderSVGImage.h" |
38 #include "platform/weborigin/SecurityOrigin.h" | 41 #include "platform/weborigin/SecurityOrigin.h" |
39 | 42 |
40 namespace WebCore { | 43 namespace WebCore { |
41 | 44 |
42 static ImageEventSender& loadEventSender() | 45 static ImageEventSender& loadEventSender() |
43 { | 46 { |
44 DEFINE_STATIC_LOCAL(ImageEventSender, sender, (EventTypeNames::load)); | 47 DEFINE_STATIC_LOCAL(ImageEventSender, sender, (EventTypeNames::load)); |
45 return sender; | 48 return sender; |
46 } | 49 } |
47 | 50 |
48 static ImageEventSender& errorEventSender() | 51 static ImageEventSender& errorEventSender() |
49 { | 52 { |
50 DEFINE_STATIC_LOCAL(ImageEventSender, sender, (EventTypeNames::error)); | 53 DEFINE_STATIC_LOCAL(ImageEventSender, sender, (EventTypeNames::error)); |
51 return sender; | 54 return sender; |
52 } | 55 } |
53 | 56 |
54 static inline bool pageIsBeingDismissed(Document* document) | 57 static inline bool pageIsBeingDismissed(Document* document) |
55 { | 58 { |
56 return document->pageDismissalEventBeingDispatched() != Document::NoDismissa l; | 59 return document->pageDismissalEventBeingDispatched() != Document::NoDismissa l; |
57 } | 60 } |
58 | 61 |
62 class ImageLoader::Task : public blink::WebThread::Task { | |
63 public: | |
64 Task(ImageLoader* loader) | |
65 : m_loader(loader) | |
66 , m_document(&m_loader->m_element->document()) | |
67 , m_shouldBypassMainWorldContentSecurityPolicy(false) | |
68 { | |
69 m_document->incrementLoadEventDelayCount(); | |
abarth-chromium
2014/04/25 23:59:44
Why is it the task's job to increment and decremen
cbiesinger
2014/05/01 00:09:08
Well the entire reason was your request to have a
| |
70 | |
71 LocalFrame* frame = m_document->frame(); | |
72 m_shouldBypassMainWorldContentSecurityPolicy = | |
73 frame && frame->script().shouldBypassMainWorldContentSecurityPolicy( ); | |
abarth-chromium
2014/04/25 23:59:44
Can |frame| actually be zero here?
cbiesinger
2014/05/01 00:09:08
This was copied from https://code.google.com/p/chr
| |
74 } | |
75 | |
76 virtual ~Task() | |
77 { | |
78 clearLoader(); | |
79 } | |
80 | |
81 virtual void run() OVERRIDE | |
82 { | |
83 if (m_loader) { | |
84 m_loader->m_pendingTask = 0; | |
abarth-chromium
2014/04/25 23:59:44
This works seems like it should be done by the loa
cbiesinger
2014/05/01 00:09:08
Done. (Note that the task is only friends implicit
| |
85 m_loader->updateFromElement(true, m_shouldBypassMainWorldContentSecu rityPolicy); | |
abarth-chromium
2014/04/25 23:59:44
Rather than passing a bool from the two different
cbiesinger
2014/05/01 00:09:08
Done.
| |
86 } | |
87 } | |
88 | |
89 void clearLoader() | |
90 { | |
91 if (m_loader) { | |
92 m_document->decrementLoadEventDelayCount(); | |
93 m_document.clear(); | |
abarth-chromium
2014/04/25 23:59:44
Once it's the loaders job to increment/decrement t
cbiesinger
2014/05/01 00:09:08
Hm... WeakPtr requires refcounted objects?
| |
94 m_loader = 0; | |
95 } | |
96 } | |
97 | |
98 void documentChanged() | |
99 { | |
100 m_document->decrementLoadEventDelayCount(); | |
101 m_document = &m_loader->m_element->document(); | |
102 m_document->incrementLoadEventDelayCount(); | |
103 } | |
104 | |
105 private: | |
106 ImageLoader* m_loader; | |
107 RefPtr<Document> m_document; | |
108 bool m_shouldBypassMainWorldContentSecurityPolicy; | |
109 }; | |
110 | |
59 ImageLoader::ImageLoader(Element* element) | 111 ImageLoader::ImageLoader(Element* element) |
60 : m_element(element) | 112 : m_element(element) |
61 , m_image(0) | 113 , m_image(0) |
62 , m_derefElementTimer(this, &ImageLoader::timerFired) | 114 , m_derefElementTimer(this, &ImageLoader::timerFired) |
115 , m_pendingTask(0) | |
63 , m_hasPendingLoadEvent(false) | 116 , m_hasPendingLoadEvent(false) |
64 , m_hasPendingErrorEvent(false) | 117 , m_hasPendingErrorEvent(false) |
65 , m_imageComplete(true) | 118 , m_imageComplete(true) |
66 , m_loadManually(false) | 119 , m_loadManually(false) |
67 , m_elementIsProtected(false) | 120 , m_elementIsProtected(false) |
68 , m_highPriorityClientCount(0) | 121 , m_highPriorityClientCount(0) |
69 { | 122 { |
70 } | 123 } |
71 | 124 |
72 ImageLoader::~ImageLoader() | 125 ImageLoader::~ImageLoader() |
73 { | 126 { |
127 if (m_pendingTask) | |
128 m_pendingTask->clearLoader(); | |
129 | |
74 if (m_image) | 130 if (m_image) |
75 m_image->removeClient(this); | 131 m_image->removeClient(this); |
76 | 132 |
77 ASSERT(m_hasPendingLoadEvent || !loadEventSender().hasPendingEvents(this)); | 133 ASSERT(m_hasPendingLoadEvent || !loadEventSender().hasPendingEvents(this)); |
78 if (m_hasPendingLoadEvent) | 134 if (m_hasPendingLoadEvent) |
79 loadEventSender().cancelEvent(this); | 135 loadEventSender().cancelEvent(this); |
80 | 136 |
81 ASSERT(m_hasPendingErrorEvent || !errorEventSender().hasPendingEvents(this)) ; | 137 ASSERT(m_hasPendingErrorEvent || !errorEventSender().hasPendingEvents(this)) ; |
82 if (m_hasPendingErrorEvent) | 138 if (m_hasPendingErrorEvent) |
83 errorEventSender().cancelEvent(this); | 139 errorEventSender().cancelEvent(this); |
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116 if (newImage) | 172 if (newImage) |
117 newImage->addClient(this); | 173 newImage->addClient(this); |
118 if (oldImage) | 174 if (oldImage) |
119 oldImage->removeClient(this); | 175 oldImage->removeClient(this); |
120 } | 176 } |
121 | 177 |
122 if (RenderImageResource* imageResource = renderImageResource()) | 178 if (RenderImageResource* imageResource = renderImageResource()) |
123 imageResource->resetAnimation(); | 179 imageResource->resetAnimation(); |
124 } | 180 } |
125 | 181 |
126 void ImageLoader::updateFromElement() | 182 void ImageLoader::updateFromElement(bool calledFromTask, bool bypassMainWorldCSP ) |
127 { | 183 { |
128 // Don't load images for inactive documents. We don't want to slow down the | 184 // Don't load images for inactive documents. We don't want to slow down the |
129 // raw HTML parsing case by loading images we don't intend to display. | 185 // raw HTML parsing case by loading images we don't intend to display. |
130 Document& document = m_element->document(); | 186 Document& document = m_element->document(); |
131 if (!document.isActive()) | 187 if (!document.isActive()) |
132 return; | 188 return; |
133 | 189 |
134 AtomicString attr = m_element->imageSourceURL(); | 190 AtomicString attr = m_element->imageSourceURL(); |
135 | 191 |
136 if (!m_failedLoadURL.isEmpty() && attr == m_failedLoadURL) | 192 if (!m_failedLoadURL.isEmpty() && attr == m_failedLoadURL) |
137 return; | 193 return; |
138 | 194 |
139 // Do not load any image if the 'src' attribute is missing or if it is | 195 // Do not load any image if the 'src' attribute is missing or if it is |
140 // an empty string. | 196 // an empty string. |
141 ResourcePtr<ImageResource> newImage = 0; | 197 ResourcePtr<ImageResource> newImage = 0; |
142 if (!attr.isNull() && !stripLeadingAndTrailingHTMLSpaces(attr).isEmpty()) { | 198 if (!attr.isNull() && !stripLeadingAndTrailingHTMLSpaces(attr).isEmpty()) { |
143 FetchRequest request(ResourceRequest(document.completeURL(sourceURI(attr ))), element()->localName()); | 199 KURL url = document.completeURL(sourceURI(attr)); |
200 if (!calledFromTask) { | |
201 // If we have a pending task, we have to clear it -- either we're | |
202 // now loading immediately, or we need to reset the task's state. | |
203 if (m_pendingTask) { | |
204 m_pendingTask->clearLoader(); | |
205 m_pendingTask = 0; | |
206 } | |
207 bool loadImmediately = shouldLoadImmediately(url); | |
208 if (!loadImmediately) { | |
209 m_pendingTask = new Task(this); | |
210 Microtask::enqueueMicrotask(adoptPtr(m_pendingTask)); | |
211 return; | |
212 } | |
213 } | |
214 | |
215 FetchRequest request(ResourceRequest(url), element()->localName()); | |
216 if (bypassMainWorldCSP) | |
217 request.setContentSecurityCheck(DoNotCheckContentSecurityPolicy); | |
144 | 218 |
145 AtomicString crossOriginMode = m_element->fastGetAttribute(HTMLNames::cr ossoriginAttr); | 219 AtomicString crossOriginMode = m_element->fastGetAttribute(HTMLNames::cr ossoriginAttr); |
146 if (!crossOriginMode.isNull()) | 220 if (!crossOriginMode.isNull()) |
147 request.setCrossOriginAccessControl(document.securityOrigin(), cross OriginMode); | 221 request.setCrossOriginAccessControl(document.securityOrigin(), cross OriginMode); |
148 | 222 |
149 if (m_loadManually) { | 223 if (m_loadManually) { |
150 bool autoLoadOtherImages = document.fetcher()->autoLoadImages(); | 224 bool autoLoadOtherImages = document.fetcher()->autoLoadImages(); |
151 document.fetcher()->setAutoLoadImages(false); | 225 document.fetcher()->setAutoLoadImages(false); |
152 newImage = new ImageResource(request.resourceRequest()); | 226 newImage = new ImageResource(request.resourceRequest()); |
153 newImage->setLoading(true); | 227 newImage->setLoading(true); |
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217 // from this function as doing so might result in the destruction of this Im ageLoader. | 291 // from this function as doing so might result in the destruction of this Im ageLoader. |
218 updatedHasPendingEvent(); | 292 updatedHasPendingEvent(); |
219 } | 293 } |
220 | 294 |
221 void ImageLoader::updateFromElementIgnoringPreviousError() | 295 void ImageLoader::updateFromElementIgnoringPreviousError() |
222 { | 296 { |
223 clearFailedLoadURL(); | 297 clearFailedLoadURL(); |
224 updateFromElement(); | 298 updateFromElement(); |
225 } | 299 } |
226 | 300 |
301 bool ImageLoader::shouldLoadImmediately(const KURL& url) const | |
302 { | |
303 if (m_loadManually) | |
304 return true; | |
305 | |
306 if (url.protocolIsData()) | |
307 return true; | |
308 if (memoryCache()->resourceForURL(url)) | |
309 return true; | |
310 return false; | |
311 } | |
312 | |
227 void ImageLoader::notifyFinished(Resource* resource) | 313 void ImageLoader::notifyFinished(Resource* resource) |
228 { | 314 { |
229 ASSERT(m_failedLoadURL.isEmpty()); | 315 ASSERT(m_failedLoadURL.isEmpty()); |
230 ASSERT(resource == m_image.get()); | 316 ASSERT(resource == m_image.get()); |
231 | 317 |
232 m_imageComplete = true; | 318 m_imageComplete = true; |
233 updateRenderer(); | 319 updateRenderer(); |
234 | 320 |
235 if (!m_hasPendingLoadEvent) | 321 if (!m_hasPendingLoadEvent) |
236 return; | 322 return; |
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382 loadEventSender().dispatchPendingEvents(); | 468 loadEventSender().dispatchPendingEvents(); |
383 } | 469 } |
384 | 470 |
385 void ImageLoader::dispatchPendingErrorEvents() | 471 void ImageLoader::dispatchPendingErrorEvents() |
386 { | 472 { |
387 errorEventSender().dispatchPendingEvents(); | 473 errorEventSender().dispatchPendingEvents(); |
388 } | 474 } |
389 | 475 |
390 void ImageLoader::elementDidMoveToNewDocument() | 476 void ImageLoader::elementDidMoveToNewDocument() |
391 { | 477 { |
478 if (m_pendingTask) { | |
479 m_pendingTask->documentChanged(); | |
480 } | |
392 clearFailedLoadURL(); | 481 clearFailedLoadURL(); |
393 setImage(0); | 482 setImage(0); |
394 } | 483 } |
395 | 484 |
396 void ImageLoader::sourceImageChanged() | 485 void ImageLoader::sourceImageChanged() |
397 { | 486 { |
398 ImageLoaderClientSet::iterator end = m_clients.end(); | 487 ImageLoaderClientSet::iterator end = m_clients.end(); |
399 for (ImageLoaderClientSet::iterator it = m_clients.begin(); it != end; ++it) { | 488 for (ImageLoaderClientSet::iterator it = m_clients.begin(); it != end; ++it) { |
400 ImageLoaderClient* handle = *it; | 489 ImageLoaderClient* handle = *it; |
401 handle->notifyImageSourceChanged(); | 490 handle->notifyImageSourceChanged(); |
402 } | 491 } |
403 } | 492 } |
404 | 493 |
405 inline void ImageLoader::clearFailedLoadURL() | 494 inline void ImageLoader::clearFailedLoadURL() |
406 { | 495 { |
407 m_failedLoadURL = AtomicString(); | 496 m_failedLoadURL = AtomicString(); |
408 } | 497 } |
409 | 498 |
410 } | 499 } |
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