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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 | 4 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Apple Inc. All rights |
5 * reserved. | 5 * reserved. |
6 * Copyright (C) 2010 Google Inc. All rights reserved. | 6 * Copyright (C) 2010 Google Inc. All rights reserved. |
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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24 #include "core/html/HTMLImageElement.h" | 24 #include "core/html/HTMLImageElement.h" |
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/DOMException.h" | |
34 #include "core/dom/NodeTraversal.h" | 35 #include "core/dom/NodeTraversal.h" |
35 #include "core/dom/shadow/ShadowRoot.h" | 36 #include "core/dom/shadow/ShadowRoot.h" |
36 #include "core/frame/Deprecation.h" | 37 #include "core/frame/Deprecation.h" |
37 #include "core/frame/ImageBitmap.h" | 38 #include "core/frame/ImageBitmap.h" |
38 #include "core/frame/LocalDOMWindow.h" | 39 #include "core/frame/LocalDOMWindow.h" |
39 #include "core/html/FormAssociated.h" | 40 #include "core/html/FormAssociated.h" |
40 #include "core/html/HTMLAnchorElement.h" | 41 #include "core/html/HTMLAnchorElement.h" |
41 #include "core/html/HTMLCanvasElement.h" | 42 #include "core/html/HTMLCanvasElement.h" |
42 #include "core/html/HTMLFormElement.h" | 43 #include "core/html/HTMLFormElement.h" |
43 #include "core/html/HTMLImageFallbackHelper.h" | 44 #include "core/html/HTMLImageFallbackHelper.h" |
44 #include "core/html/HTMLPictureElement.h" | 45 #include "core/html/HTMLPictureElement.h" |
45 #include "core/html/HTMLSourceElement.h" | 46 #include "core/html/HTMLSourceElement.h" |
46 #include "core/html/parser/HTMLParserIdioms.h" | 47 #include "core/html/parser/HTMLParserIdioms.h" |
47 #include "core/html/parser/HTMLSrcsetParser.h" | 48 #include "core/html/parser/HTMLSrcsetParser.h" |
48 #include "core/imagebitmap/ImageBitmapOptions.h" | 49 #include "core/imagebitmap/ImageBitmapOptions.h" |
49 #include "core/inspector/ConsoleMessage.h" | 50 #include "core/inspector/ConsoleMessage.h" |
50 #include "core/layout/LayoutBlockFlow.h" | 51 #include "core/layout/LayoutBlockFlow.h" |
51 #include "core/layout/LayoutImage.h" | 52 #include "core/layout/LayoutImage.h" |
52 #include "core/layout/api/LayoutImageItem.h" | 53 #include "core/layout/api/LayoutImageItem.h" |
53 #include "core/loader/resource/ImageResourceContent.h" | 54 #include "core/loader/resource/ImageResourceContent.h" |
55 #include "core/page/ChromeClient.h" | |
54 #include "core/page/Page.h" | 56 #include "core/page/Page.h" |
55 #include "core/style/ContentData.h" | 57 #include "core/style/ContentData.h" |
56 #include "core/svg/graphics/SVGImageForContainer.h" | 58 #include "core/svg/graphics/SVGImageForContainer.h" |
57 #include "platform/EventDispatchForbiddenScope.h" | 59 #include "platform/EventDispatchForbiddenScope.h" |
58 #include "platform/network/mime/ContentType.h" | 60 #include "platform/network/mime/ContentType.h" |
59 #include "platform/network/mime/MIMETypeRegistry.h" | 61 #include "platform/network/mime/MIMETypeRegistry.h" |
60 #include "platform/weborigin/SecurityPolicy.h" | 62 #include "platform/weborigin/SecurityPolicy.h" |
61 | 63 |
62 namespace blink { | 64 namespace blink { |
63 | 65 |
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85 : element_(element) {} | 87 : element_(element) {} |
86 Member<HTMLImageElement> element_; | 88 Member<HTMLImageElement> element_; |
87 }; | 89 }; |
88 | 90 |
89 HTMLImageElement::HTMLImageElement(Document& document, bool created_by_parser) | 91 HTMLImageElement::HTMLImageElement(Document& document, bool created_by_parser) |
90 : HTMLElement(imgTag, document), | 92 : HTMLElement(imgTag, document), |
91 image_loader_(HTMLImageLoader::Create(this)), | 93 image_loader_(HTMLImageLoader::Create(this)), |
92 image_device_pixel_ratio_(1.0f), | 94 image_device_pixel_ratio_(1.0f), |
93 source_(nullptr), | 95 source_(nullptr), |
94 layout_disposition_(LayoutDisposition::kPrimaryContent), | 96 layout_disposition_(LayoutDisposition::kPrimaryContent), |
97 decode_sequence_id_(0), | |
95 form_was_set_by_parser_(false), | 98 form_was_set_by_parser_(false), |
96 element_created_by_parser_(created_by_parser), | 99 element_created_by_parser_(created_by_parser), |
97 is_fallback_image_(false), | 100 is_fallback_image_(false), |
98 referrer_policy_(kReferrerPolicyDefault) { | 101 referrer_policy_(kReferrerPolicyDefault) { |
99 SetHasCustomStyleCallbacks(); | 102 SetHasCustomStyleCallbacks(); |
100 } | 103 } |
101 | 104 |
102 HTMLImageElement* HTMLImageElement::Create(Document& document) { | 105 HTMLImageElement* HTMLImageElement::Create(Document& document) { |
103 return new HTMLImageElement(document); | 106 return new HTMLImageElement(document); |
104 } | 107 } |
105 | 108 |
106 HTMLImageElement* HTMLImageElement::Create(Document& document, | 109 HTMLImageElement* HTMLImageElement::Create(Document& document, |
107 bool created_by_parser) { | 110 bool created_by_parser) { |
108 return new HTMLImageElement(document, created_by_parser); | 111 return new HTMLImageElement(document, created_by_parser); |
109 } | 112 } |
110 | 113 |
111 HTMLImageElement::~HTMLImageElement() {} | 114 HTMLImageElement::~HTMLImageElement() {} |
112 | 115 |
113 DEFINE_TRACE(HTMLImageElement) { | 116 DEFINE_TRACE(HTMLImageElement) { |
114 visitor->Trace(image_loader_); | 117 visitor->Trace(image_loader_); |
115 visitor->Trace(listener_); | 118 visitor->Trace(listener_); |
116 visitor->Trace(form_); | 119 visitor->Trace(form_); |
117 visitor->Trace(source_); | 120 visitor->Trace(source_); |
121 visitor->Trace(decode_promise_resolvers_); | |
118 HTMLElement::Trace(visitor); | 122 HTMLElement::Trace(visitor); |
119 } | 123 } |
120 | 124 |
121 void HTMLImageElement::NotifyViewportChanged() { | 125 void HTMLImageElement::NotifyViewportChanged() { |
122 // Re-selecting the source URL in order to pick a more fitting resource | 126 // Re-selecting the source URL in order to pick a more fitting resource |
123 // And update the image's intrinsic dimensions when the viewport changes. | 127 // And update the image's intrinsic dimensions when the viewport changes. |
124 // Picking of a better fitting resource is UA dependant, not spec required. | 128 // Picking of a better fitting resource is UA dependant, not spec required. |
125 SelectSourceURL(ImageLoader::kUpdateSizeChanged); | 129 SelectSourceURL(ImageLoader::kUpdateSizeChanged); |
126 } | 130 } |
127 | 131 |
132 void HTMLImageElement::RequestDecode() { | |
133 DCHECK(!decode_promise_resolvers_.IsEmpty()); | |
134 LocalFrame* frame = GetDocument().GetFrame(); | |
135 // If we don't have the image, or the document doesn't have a frame, then | |
136 // reject the decode, since we can't plumb the request to the correct place. | |
137 if (!GetImageLoader().GetImage() || | |
138 !GetImageLoader().GetImage()->GetImage() || !frame) { | |
139 DidDecode(decode_sequence_id_, false); | |
140 return; | |
141 } | |
142 Image* image = GetImageLoader().GetImage()->GetImage(); | |
143 frame->GetChromeClient().RequestDecode( | |
144 frame, image->ImageForCurrentFrame(), | |
pdr.
2017/05/18 03:20:10
Is this the image at its native resolution or does
vmpstr
2017/05/18 18:51:13
This should be native resolution
| |
145 WTF::Bind(&HTMLImageElement::DidDecode, WrapWeakPersistent(this), | |
146 decode_sequence_id_)); | |
147 } | |
148 | |
149 void HTMLImageElement::DidDecode(uint32_t sequence_id, bool success) { | |
150 // If the sequence id attached with this callback doesn't match our current | |
151 // sequence id, then the source of the image has changed. In other words, the | |
152 // decode resolved/rejected by this callback was already rejected. Since we | |
153 // could have had a new decode request, we have to make sure not to | |
154 // resolve/reject those using the stale callback. | |
155 if (sequence_id != decode_sequence_id_) | |
156 return; | |
157 | |
158 if (success) { | |
159 for (auto& resolver : decode_promise_resolvers_) | |
160 resolver->Resolve(); | |
161 } else { | |
162 for (auto& resolver : decode_promise_resolvers_) { | |
163 resolver->Reject(DOMException::Create( | |
164 kEncodingError, "The source image cannot be decoded")); | |
165 } | |
166 } | |
167 decode_promise_resolvers_.clear(); | |
168 } | |
169 | |
128 HTMLImageElement* HTMLImageElement::CreateForJSConstructor(Document& document) { | 170 HTMLImageElement* HTMLImageElement::CreateForJSConstructor(Document& document) { |
129 HTMLImageElement* image = new HTMLImageElement(document); | 171 HTMLImageElement* image = new HTMLImageElement(document); |
130 image->element_created_by_parser_ = false; | 172 image->element_created_by_parser_ = false; |
131 return image; | 173 return image; |
132 } | 174 } |
133 | 175 |
134 HTMLImageElement* HTMLImageElement::CreateForJSConstructor(Document& document, | 176 HTMLImageElement* HTMLImageElement::CreateForJSConstructor(Document& document, |
135 unsigned width) { | 177 unsigned width) { |
136 HTMLImageElement* image = new HTMLImageElement(document); | 178 HTMLImageElement* image = new HTMLImageElement(document); |
137 image->setWidth(width); | 179 image->setWidth(width); |
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253 const QualifiedName& name = params.name; | 295 const QualifiedName& name = params.name; |
254 if (name == altAttr || name == titleAttr) { | 296 if (name == altAttr || name == titleAttr) { |
255 if (UserAgentShadowRoot()) { | 297 if (UserAgentShadowRoot()) { |
256 Element* text = UserAgentShadowRoot()->getElementById("alttext"); | 298 Element* text = UserAgentShadowRoot()->getElementById("alttext"); |
257 String value = AltText(); | 299 String value = AltText(); |
258 if (text && text->textContent() != params.new_value) | 300 if (text && text->textContent() != params.new_value) |
259 text->setTextContent(AltText()); | 301 text->setTextContent(AltText()); |
260 } | 302 } |
261 } else if (name == srcAttr || name == srcsetAttr || name == sizesAttr) { | 303 } else if (name == srcAttr || name == srcsetAttr || name == sizesAttr) { |
262 SelectSourceURL(ImageLoader::kUpdateIgnorePreviousError); | 304 SelectSourceURL(ImageLoader::kUpdateIgnorePreviousError); |
305 // Ensure to fail any pending decodes on possible source changes. | |
306 if (!decode_promise_resolvers_.IsEmpty() && | |
307 params.old_value != params.new_value) { | |
308 DidDecode(decode_sequence_id_, false); | |
309 // Increment the sequence id so that any in flight decode completion tasks | |
310 // will not trigger promise resolution for new decode requests. | |
311 ++decode_sequence_id_; | |
312 } | |
263 } else if (name == usemapAttr) { | 313 } else if (name == usemapAttr) { |
264 SetIsLink(!params.new_value.IsNull()); | 314 SetIsLink(!params.new_value.IsNull()); |
265 } else if (name == referrerpolicyAttr) { | 315 } else if (name == referrerpolicyAttr) { |
266 referrer_policy_ = kReferrerPolicyDefault; | 316 referrer_policy_ = kReferrerPolicyDefault; |
267 if (!params.new_value.IsNull()) { | 317 if (!params.new_value.IsNull()) { |
268 SecurityPolicy::ReferrerPolicyFromString( | 318 SecurityPolicy::ReferrerPolicyFromString( |
269 params.new_value, kSupportReferrerPolicyLegacyKeywords, | 319 params.new_value, kSupportReferrerPolicyLegacyKeywords, |
270 &referrer_policy_); | 320 &referrer_policy_); |
271 UseCounter::Count(GetDocument(), | 321 UseCounter::Count(GetDocument(), |
272 UseCounter::kHTMLImageElementReferrerPolicyAttribute); | 322 UseCounter::kHTMLImageElementReferrerPolicyAttribute); |
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589 GetDocument().UpdateStyleAndLayoutIgnorePendingStylesheets(); | 639 GetDocument().UpdateStyleAndLayoutIgnorePendingStylesheets(); |
590 LayoutObject* r = GetLayoutObject(); | 640 LayoutObject* r = GetLayoutObject(); |
591 if (!r) | 641 if (!r) |
592 return 0; | 642 return 0; |
593 | 643 |
594 // FIXME: This doesn't work correctly with transforms. | 644 // FIXME: This doesn't work correctly with transforms. |
595 FloatPoint abs_pos = r->LocalToAbsolute(); | 645 FloatPoint abs_pos = r->LocalToAbsolute(); |
596 return abs_pos.Y(); | 646 return abs_pos.Y(); |
597 } | 647 } |
598 | 648 |
649 ScriptPromise HTMLImageElement::decode(ScriptState* script_state, | |
650 ExceptionState& exception_state) { | |
651 if (!script_state->ContextIsValid()) { | |
652 exception_state.ThrowDOMException(kEncodingError, | |
653 "The source image cannot be decoded"); | |
654 return ScriptPromise(); | |
655 } | |
656 exception_state.ClearException(); | |
657 decode_promise_resolvers_.push_back( | |
658 ScriptPromiseResolver::Create(script_state)); | |
659 ScriptPromise promise = decode_promise_resolvers_.back()->Promise(); | |
660 if (complete()) | |
661 RequestDecode(); | |
662 return promise; | |
663 } | |
664 | |
599 bool HTMLImageElement::complete() const { | 665 bool HTMLImageElement::complete() const { |
600 return GetImageLoader().ImageComplete(); | 666 return GetImageLoader().ImageComplete(); |
601 } | 667 } |
602 | 668 |
603 void HTMLImageElement::DidMoveToNewDocument(Document& old_document) { | 669 void HTMLImageElement::DidMoveToNewDocument(Document& old_document) { |
604 SelectSourceURL(ImageLoader::kUpdateIgnorePreviousError); | 670 SelectSourceURL(ImageLoader::kUpdateIgnorePreviousError); |
605 GetImageLoader().ElementDidMoveToNewDocument(); | 671 GetImageLoader().ElementDidMoveToNewDocument(); |
606 HTMLElement::DidMoveToNewDocument(old_document); | 672 HTMLElement::DidMoveToNewDocument(old_document); |
607 } | 673 } |
608 | 674 |
609 bool HTMLImageElement::IsServerMap() const { | 675 bool HTMLImageElement::IsServerMap() const { |
610 if (!FastHasAttribute(ismapAttr)) | 676 if (!FastHasAttribute(ismapAttr)) |
611 return false; | 677 return false; |
612 | 678 |
613 const AtomicString& usemap = FastGetAttribute(usemapAttr); | 679 const AtomicString& usemap = FastGetAttribute(usemapAttr); |
614 | 680 |
615 // If the usemap attribute starts with '#', it refers to a map element in the | 681 // If the usemap attribute starts with '#', it refers to a map element in |
616 // document. | 682 // the document. |
617 if (usemap[0] == '#') | 683 if (usemap[0] == '#') |
618 return false; | 684 return false; |
619 | 685 |
620 return GetDocument() | 686 return GetDocument() |
621 .CompleteURL(StripLeadingAndTrailingHTMLSpaces(usemap)) | 687 .CompleteURL(StripLeadingAndTrailingHTMLSpaces(usemap)) |
622 .IsEmpty(); | 688 .IsEmpty(); |
623 } | 689 } |
624 | 690 |
625 Image* HTMLImageElement::ImageContents() { | 691 Image* HTMLImageElement::ImageContents() { |
626 if (!GetImageLoader().ImageComplete()) | 692 if (!GetImageLoader().ImageComplete()) |
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804 return OriginalStyleForLayoutObject(); | 870 return OriginalStyleForLayoutObject(); |
805 case LayoutDisposition::kFallbackContent: | 871 case LayoutDisposition::kFallbackContent: |
806 return HTMLImageFallbackHelper::CustomStyleForAltText( | 872 return HTMLImageFallbackHelper::CustomStyleForAltText( |
807 *this, ComputedStyle::Clone(*OriginalStyleForLayoutObject())); | 873 *this, ComputedStyle::Clone(*OriginalStyleForLayoutObject())); |
808 default: | 874 default: |
809 NOTREACHED(); | 875 NOTREACHED(); |
810 return nullptr; | 876 return nullptr; |
811 } | 877 } |
812 } | 878 } |
813 | 879 |
880 void HTMLImageElement::ImageNotifyFinished(bool success) { | |
881 if (decode_promise_resolvers_.IsEmpty()) | |
882 return; | |
883 if (success) | |
884 RequestDecode(); | |
885 else | |
886 DidDecode(decode_sequence_id_, false); | |
887 } | |
888 | |
814 void HTMLImageElement::AssociateWith(HTMLFormElement* form) { | 889 void HTMLImageElement::AssociateWith(HTMLFormElement* form) { |
815 if (form && form->isConnected()) { | 890 if (form && form->isConnected()) { |
816 form_ = form; | 891 form_ = form; |
817 form_was_set_by_parser_ = true; | 892 form_was_set_by_parser_ = true; |
818 form_->Associate(*this); | 893 form_->Associate(*this); |
819 form_->DidAssociateByParser(); | 894 form_->DidAssociateByParser(); |
820 } | 895 } |
821 }; | 896 }; |
822 | 897 |
823 FloatSize HTMLImageElement::SourceDefaultObjectSize() { | 898 FloatSize HTMLImageElement::SourceDefaultObjectSize() { |
824 return FloatSize(width(), height()); | 899 return FloatSize(width(), height()); |
825 } | 900 } |
826 | 901 |
827 } // namespace blink | 902 } // namespace blink |
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