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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, 2008, 2010 Apple Inc. All rights reserv ed. | 4 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Apple Inc. All rights reserv ed. |
5 * Copyright (C) 2010 Google Inc. All rights reserved. | 5 * Copyright (C) 2010 Google Inc. All rights reserved. |
6 * | 6 * |
7 * This library is free software; you can redistribute it and/or | 7 * This library is free software; you can redistribute it and/or |
8 * modify it under the terms of the GNU Library General Public | 8 * modify it under the terms of the GNU Library General Public |
9 * License as published by the Free Software Foundation; either | 9 * License as published by the Free Software Foundation; either |
10 * version 2 of the License, or (at your option) any later version. | 10 * version 2 of the License, or (at your option) any later version. |
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25 | 25 |
26 #include "bindings/core/v8/ScriptEventListener.h" | 26 #include "bindings/core/v8/ScriptEventListener.h" |
27 #include "core/CSSPropertyNames.h" | 27 #include "core/CSSPropertyNames.h" |
28 #include "core/HTMLNames.h" | 28 #include "core/HTMLNames.h" |
29 #include "core/MediaTypeNames.h" | 29 #include "core/MediaTypeNames.h" |
30 #include "core/css/MediaQueryMatcher.h" | 30 #include "core/css/MediaQueryMatcher.h" |
31 #include "core/css/MediaValuesDynamic.h" | 31 #include "core/css/MediaValuesDynamic.h" |
32 #include "core/css/parser/SizesAttributeParser.h" | 32 #include "core/css/parser/SizesAttributeParser.h" |
33 #include "core/dom/Attribute.h" | 33 #include "core/dom/Attribute.h" |
34 #include "core/dom/NodeTraversal.h" | 34 #include "core/dom/NodeTraversal.h" |
35 #include "core/dom/Text.h" | |
36 #include "core/dom/shadow/ElementShadow.h" | |
37 #include "core/dom/shadow/ShadowRoot.h" | |
35 #include "core/fetch/ImageResource.h" | 38 #include "core/fetch/ImageResource.h" |
36 #include "core/frame/UseCounter.h" | 39 #include "core/frame/UseCounter.h" |
37 #include "core/html/HTMLAnchorElement.h" | 40 #include "core/html/HTMLAnchorElement.h" |
38 #include "core/html/HTMLCanvasElement.h" | 41 #include "core/html/HTMLCanvasElement.h" |
42 #include "core/html/HTMLDivElement.h" | |
39 #include "core/html/HTMLFormElement.h" | 43 #include "core/html/HTMLFormElement.h" |
44 #include "core/html/HTMLImageFallbackHelper.h" | |
40 #include "core/html/HTMLSourceElement.h" | 45 #include "core/html/HTMLSourceElement.h" |
46 #include "core/html/HTMLStyleElement.h" | |
41 #include "core/html/canvas/CanvasRenderingContext.h" | 47 #include "core/html/canvas/CanvasRenderingContext.h" |
42 #include "core/html/parser/HTMLParserIdioms.h" | 48 #include "core/html/parser/HTMLParserIdioms.h" |
43 #include "core/html/parser/HTMLSrcsetParser.h" | 49 #include "core/html/parser/HTMLSrcsetParser.h" |
44 #include "core/inspector/ConsoleMessage.h" | 50 #include "core/inspector/ConsoleMessage.h" |
51 #include "core/rendering/RenderBlockFlow.h" | |
45 #include "core/rendering/RenderImage.h" | 52 #include "core/rendering/RenderImage.h" |
46 #include "platform/MIMETypeRegistry.h" | 53 #include "platform/MIMETypeRegistry.h" |
47 #include "platform/RuntimeEnabledFeatures.h" | 54 #include "platform/RuntimeEnabledFeatures.h" |
48 | 55 |
49 namespace blink { | 56 namespace blink { |
50 | 57 |
51 using namespace HTMLNames; | 58 using namespace HTMLNames; |
52 | 59 |
53 class HTMLImageElement::ViewportChangeListener FINAL : public MediaQueryListList ener { | 60 class HTMLImageElement::ViewportChangeListener FINAL : public MediaQueryListList ener { |
54 public: | 61 public: |
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72 MediaQueryListListener::trace(visitor); | 79 MediaQueryListListener::trace(visitor); |
73 } | 80 } |
74 private: | 81 private: |
75 explicit ViewportChangeListener(HTMLImageElement* element) : m_element(eleme nt) { } | 82 explicit ViewportChangeListener(HTMLImageElement* element) : m_element(eleme nt) { } |
76 RawPtrWillBeMember<HTMLImageElement> m_element; | 83 RawPtrWillBeMember<HTMLImageElement> m_element; |
77 }; | 84 }; |
78 | 85 |
79 HTMLImageElement::HTMLImageElement(Document& document, HTMLFormElement* form, bo ol createdByParser) | 86 HTMLImageElement::HTMLImageElement(Document& document, HTMLFormElement* form, bo ol createdByParser) |
80 : HTMLElement(imgTag, document) | 87 : HTMLElement(imgTag, document) |
81 , m_imageLoader(HTMLImageLoader::create(this)) | 88 , m_imageLoader(HTMLImageLoader::create(this)) |
89 , m_altTextNode(0) | |
82 , m_compositeOperator(CompositeSourceOver) | 90 , m_compositeOperator(CompositeSourceOver) |
83 , m_imageDevicePixelRatio(1.0f) | 91 , m_imageDevicePixelRatio(1.0f) |
84 , m_formWasSetByParser(false) | 92 , m_formWasSetByParser(false) |
85 , m_elementCreatedByParser(createdByParser) | 93 , m_elementCreatedByParser(createdByParser) |
86 , m_intrinsicSizingViewportDependant(false) | 94 , m_intrinsicSizingViewportDependant(false) |
87 , m_effectiveSizeViewportDependant(false) | 95 , m_effectiveSizeViewportDependant(false) |
96 , m_useFallbackContent(false) | |
97 , m_isFallbackImage(false) | |
88 { | 98 { |
89 ScriptWrappable::init(this); | 99 ScriptWrappable::init(this); |
100 setHasCustomStyleCallbacks(); | |
90 if (form && form->inDocument()) { | 101 if (form && form->inDocument()) { |
91 #if ENABLE(OILPAN) | 102 #if ENABLE(OILPAN) |
92 m_form = form; | 103 m_form = form; |
93 #else | 104 #else |
94 m_form = form->createWeakPtr(); | 105 m_form = form->createWeakPtr(); |
95 #endif | 106 #endif |
96 m_formWasSetByParser = true; | 107 m_formWasSetByParser = true; |
97 m_form->associate(*this); | 108 m_form->associate(*this); |
98 m_form->didAssociateByParser(); | 109 m_form->didAssociateByParser(); |
99 } | 110 } |
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230 UseCounter::count(document(), UseCounter::SrcsetWDescriptor); | 241 UseCounter::count(document(), UseCounter::SrcsetWDescriptor); |
231 } else if (!candidate.srcOrigin()) { | 242 } else if (!candidate.srcOrigin()) { |
232 UseCounter::count(document(), UseCounter::SrcsetXDescriptor); | 243 UseCounter::count(document(), UseCounter::SrcsetXDescriptor); |
233 } | 244 } |
234 if (renderer() && renderer()->isImage()) | 245 if (renderer() && renderer()->isImage()) |
235 toRenderImage(renderer())->setImageDevicePixelRatio(m_imageDevicePixelRa tio); | 246 toRenderImage(renderer())->setImageDevicePixelRatio(m_imageDevicePixelRa tio); |
236 } | 247 } |
237 | 248 |
238 void HTMLImageElement::parseAttribute(const QualifiedName& name, const AtomicStr ing& value) | 249 void HTMLImageElement::parseAttribute(const QualifiedName& name, const AtomicStr ing& value) |
239 { | 250 { |
240 if (name == altAttr) { | 251 if (name == altAttr || name == titleAttr) { |
241 if (renderer() && renderer()->isImage()) | 252 if (Text* text = altTextNode()) { |
242 toRenderImage(renderer())->updateAltText(); | 253 String alt = altText(); |
254 if (text->data() != alt) | |
255 text->setData(alt); | |
esprehn
2014/09/05 00:47:51
same thing.
rhogan
2014/09/08 19:52:41
Not done.
| |
256 } | |
243 } else if (name == srcAttr || name == srcsetAttr || name == sizesAttr) { | 257 } else if (name == srcAttr || name == srcsetAttr || name == sizesAttr) { |
244 selectSourceURL(ImageLoader::UpdateIgnorePreviousError); | 258 selectSourceURL(ImageLoader::UpdateIgnorePreviousError); |
245 } else if (name == usemapAttr) { | 259 } else if (name == usemapAttr) { |
246 setIsLink(!value.isNull()); | 260 setIsLink(!value.isNull()); |
247 } else if (name == compositeAttr) { | 261 } else if (name == compositeAttr) { |
248 blink::WebBlendMode blendOp = blink::WebBlendModeNormal; | 262 blink::WebBlendMode blendOp = blink::WebBlendModeNormal; |
249 if (!parseCompositeAndBlendOperator(value, m_compositeOperator, blendOp) ) | 263 if (!parseCompositeAndBlendOperator(value, m_compositeOperator, blendOp) ) |
250 m_compositeOperator = CompositeSourceOver; | 264 m_compositeOperator = CompositeSourceOver; |
251 else if (m_compositeOperator != CompositeSourceOver) | 265 else if (m_compositeOperator != CompositeSourceOver) |
252 UseCounter::count(document(), UseCounter::HTMLImageElementComposite) ; | 266 UseCounter::count(document(), UseCounter::HTMLImageElementComposite) ; |
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311 return candidate; | 325 return candidate; |
312 } | 326 } |
313 return ImageCandidate(); | 327 return ImageCandidate(); |
314 } | 328 } |
315 | 329 |
316 RenderObject* HTMLImageElement::createRenderer(RenderStyle* style) | 330 RenderObject* HTMLImageElement::createRenderer(RenderStyle* style) |
317 { | 331 { |
318 if (style->hasContent()) | 332 if (style->hasContent()) |
319 return RenderObject::createObject(this, style); | 333 return RenderObject::createObject(this, style); |
320 | 334 |
335 if (m_useFallbackContent && !shadowRoot() && userAgentShadowRoot()) | |
esprehn
2014/09/05 00:47:50
Don't check userAgentShadowRoot() or shadowRoot()
rhogan
2014/09/08 19:52:41
Done
| |
336 return new RenderBlockFlow(this); | |
337 | |
321 RenderImage* image = new RenderImage(this); | 338 RenderImage* image = new RenderImage(this); |
322 image->setImageResource(RenderImageResource::create()); | 339 image->setImageResource(RenderImageResource::create()); |
323 image->setImageDevicePixelRatio(m_imageDevicePixelRatio); | 340 image->setImageDevicePixelRatio(m_imageDevicePixelRatio); |
324 return image; | 341 return image; |
325 } | 342 } |
326 | 343 |
327 bool HTMLImageElement::canStartSelection() const | 344 bool HTMLImageElement::canStartSelection() const |
328 { | 345 { |
329 if (shadow()) | 346 if (shadow()) |
330 return HTMLElement::canStartSelection(); | 347 return HTMLElement::canStartSelection(); |
331 | 348 |
332 return false; | 349 return false; |
333 } | 350 } |
334 | 351 |
335 void HTMLImageElement::attach(const AttachContext& context) | 352 void HTMLImageElement::attach(const AttachContext& context) |
336 { | 353 { |
337 HTMLElement::attach(context); | 354 HTMLElement::attach(context); |
338 | 355 |
339 if (renderer() && renderer()->isImage()) { | 356 if (renderer() && renderer()->isImage()) { |
340 RenderImage* renderImage = toRenderImage(renderer()); | 357 RenderImage* renderImage = toRenderImage(renderer()); |
341 RenderImageResource* renderImageResource = renderImage->imageResource(); | 358 RenderImageResource* renderImageResource = renderImage->imageResource(); |
342 if (renderImageResource->hasImage()) | 359 if (renderImageResource->hasImage()) |
343 return; | 360 return; |
344 | 361 |
345 // If we have no image at all because we have no src attribute, set | |
346 // image height and width for the alt text instead. | |
347 if (!imageLoader().image() && !renderImageResource->cachedImage()) | 362 if (!imageLoader().image() && !renderImageResource->cachedImage()) |
348 renderImage->setImageSizeForAltText(); | 363 return; |
349 else | 364 renderImageResource->setImageResource(imageLoader().image()); |
350 renderImageResource->setImageResource(imageLoader().image()); | |
351 | |
352 } | 365 } |
353 } | 366 } |
354 | 367 |
355 Node::InsertionNotificationRequest HTMLImageElement::insertedInto(ContainerNode* insertionPoint) | 368 Node::InsertionNotificationRequest HTMLImageElement::insertedInto(ContainerNode* insertionPoint) |
356 { | 369 { |
357 if (!m_formWasSetByParser || NodeTraversal::highestAncestorOrSelf(*insertion Point) != NodeTraversal::highestAncestorOrSelf(*m_form.get())) | 370 if (!m_formWasSetByParser || NodeTraversal::highestAncestorOrSelf(*insertion Point) != NodeTraversal::highestAncestorOrSelf(*m_form.get())) |
358 resetFormOwner(); | 371 resetFormOwner(); |
359 if (m_listener) | 372 if (m_listener) |
360 document().mediaQueryMatcher().addViewportListener(m_listener.get()); | 373 document().mediaQueryMatcher().addViewportListener(m_listener.get()); |
361 | 374 |
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641 m_effectiveSizeViewportDependant = parser.viewportDependant(); | 654 m_effectiveSizeViewportDependant = parser.viewportDependant(); |
642 } | 655 } |
643 ImageCandidate candidate = bestFitSourceForImageAttributes(document().de vicePixelRatio(), effectiveSize, fastGetAttribute(srcAttr), fastGetAttribute(src setAttr)); | 656 ImageCandidate candidate = bestFitSourceForImageAttributes(document().de vicePixelRatio(), effectiveSize, fastGetAttribute(srcAttr), fastGetAttribute(src setAttr)); |
644 setBestFitURLAndDPRFromImageCandidate(candidate); | 657 setBestFitURLAndDPRFromImageCandidate(candidate); |
645 } | 658 } |
646 if (m_intrinsicSizingViewportDependant && m_effectiveSizeViewportDependant & & !m_listener.get()) { | 659 if (m_intrinsicSizingViewportDependant && m_effectiveSizeViewportDependant & & !m_listener.get()) { |
647 m_listener = ViewportChangeListener::create(this); | 660 m_listener = ViewportChangeListener::create(this); |
648 document().mediaQueryMatcher().addViewportListener(m_listener.get()); | 661 document().mediaQueryMatcher().addViewportListener(m_listener.get()); |
649 } | 662 } |
650 imageLoader().updateFromElement(behavior); | 663 imageLoader().updateFromElement(behavior); |
664 | |
665 if (imageLoader().image() || (imageLoader().hasPendingActivity() && !imageSo urceURL().isEmpty())) | |
666 ensurePrimaryContent(); | |
667 else | |
668 ensureFallbackContent(); | |
651 } | 669 } |
652 | 670 |
653 const KURL& HTMLImageElement::sourceURL() const | 671 const KURL& HTMLImageElement::sourceURL() const |
654 { | 672 { |
655 return cachedImage()->response().url(); | 673 return cachedImage()->response().url(); |
656 } | 674 } |
657 | 675 |
676 void HTMLImageElement::didAddUserAgentShadowRoot(ShadowRoot& root) | |
esprehn
2014/09/05 00:47:51
Remove this.
| |
677 { | |
678 m_altTextNode = createAltTextShadowTree(this); | |
658 } | 679 } |
680 | |
681 void HTMLImageElement::ensureFallbackContent() | |
682 { | |
683 if (m_useFallbackContent || m_isFallbackImage) | |
684 return; | |
685 setUseFallbackContent(); | |
686 if (!inDocument()) | |
esprehn
2014/09/05 00:47:50
ditto
rhogan
2014/09/08 19:52:41
Done
| |
687 return; | |
688 reattachFallbackContent(); | |
689 } | |
690 | |
691 void HTMLImageElement::ensurePrimaryContent() | |
692 { | |
693 if (!m_useFallbackContent || !inDocument()) | |
esprehn
2014/09/05 00:47:50
ditto
rhogan
2014/09/08 19:52:41
Done
| |
694 return; | |
695 m_useFallbackContent = false; | |
696 reattachFallbackContent(); | |
697 } | |
698 | |
699 void HTMLImageElement::reattachFallbackContent() | |
700 { | |
701 // This can happen inside of attach() in the middle of a recalcStyle so we n eed to | |
702 // reattach synchronously here. | |
703 if (document().inStyleRecalc()) | |
704 reattach(); | |
705 else | |
706 lazyReattachIfAttached(); | |
707 } | |
708 | |
709 PassRefPtr<RenderStyle> HTMLImageElement::customStyleForRenderer() | |
710 { | |
711 RefPtr<RenderStyle> newStyle = originalStyleForRenderer(); | |
712 | |
713 if (!m_useFallbackContent) | |
714 return newStyle; | |
715 return customStyleForAltText(this, newStyle); | |
716 } | |
717 } | |
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