218 lines
7.5 KiB
C++
218 lines
7.5 KiB
C++
/*
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* Copyright (C) 2007-2018 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "HTMLSourceElement.h"
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#include "Event.h"
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#include "EventNames.h"
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#include "HTMLImageElement.h"
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#include "HTMLNames.h"
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#include "HTMLPictureElement.h"
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#include "Logging.h"
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#include "MediaList.h"
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#include "MediaQueryParser.h"
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#include <wtf/IsoMallocInlines.h>
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#if ENABLE(VIDEO)
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#include "HTMLMediaElement.h"
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#endif
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#if ENABLE(MODEL_ELEMENT)
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#include "HTMLModelElement.h"
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#endif
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namespace WebCore {
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WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLSourceElement);
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using namespace HTMLNames;
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inline HTMLSourceElement::HTMLSourceElement(const QualifiedName& tagName, Document& document)
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: HTMLElement(tagName, document)
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, ActiveDOMObject(document)
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, m_errorEventTimer(*this, &HTMLSourceElement::errorEventTimerFired)
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{
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LOG(Media, "HTMLSourceElement::HTMLSourceElement - %p", this);
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ASSERT(hasTagName(sourceTag));
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}
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Ref<HTMLSourceElement> HTMLSourceElement::create(const QualifiedName& tagName, Document& document)
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{
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auto sourceElement = adoptRef(*new HTMLSourceElement(tagName, document));
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sourceElement->suspendIfNeeded();
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return sourceElement;
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}
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Ref<HTMLSourceElement> HTMLSourceElement::create(Document& document)
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{
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return create(sourceTag, document);
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}
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Node::InsertedIntoAncestorResult HTMLSourceElement::insertedIntoAncestor(InsertionType insertionType, ContainerNode& parentOfInsertedTree)
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{
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HTMLElement::insertedIntoAncestor(insertionType, parentOfInsertedTree);
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RefPtr<Element> parent = parentElement();
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if (parent == &parentOfInsertedTree) {
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#if ENABLE(VIDEO)
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if (is<HTMLMediaElement>(*parent))
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downcast<HTMLMediaElement>(*parent).sourceWasAdded(*this);
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else
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#endif
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#if ENABLE(MODEL_ELEMENT)
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if (is<HTMLModelElement>(*parent))
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downcast<HTMLModelElement>(*parent).sourcesChanged();
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else
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#endif
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if (is<HTMLPictureElement>(*parent)) {
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// The new source element only is a relevant mutation if it precedes any img element.
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m_shouldCallSourcesChanged = true;
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for (const Node* node = previousSibling(); node; node = node->previousSibling()) {
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if (is<HTMLImageElement>(*node))
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m_shouldCallSourcesChanged = false;
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}
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if (m_shouldCallSourcesChanged)
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downcast<HTMLPictureElement>(*parent).sourcesChanged();
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}
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}
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return InsertedIntoAncestorResult::Done;
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}
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void HTMLSourceElement::removedFromAncestor(RemovalType removalType, ContainerNode& oldParentOfRemovedTree)
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{
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HTMLElement::removedFromAncestor(removalType, oldParentOfRemovedTree);
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if (!parentNode() && is<Element>(oldParentOfRemovedTree)) {
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#if ENABLE(VIDEO)
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if (is<HTMLMediaElement>(oldParentOfRemovedTree))
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downcast<HTMLMediaElement>(oldParentOfRemovedTree).sourceWasRemoved(*this);
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else
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#endif
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#if ENABLE(MODEL_ELEMENT)
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if (is<HTMLModelElement>(oldParentOfRemovedTree))
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downcast<HTMLModelElement>(oldParentOfRemovedTree).sourcesChanged();
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else
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#endif
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if (m_shouldCallSourcesChanged) {
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downcast<HTMLPictureElement>(oldParentOfRemovedTree).sourcesChanged();
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m_shouldCallSourcesChanged = false;
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}
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}
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}
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void HTMLSourceElement::scheduleErrorEvent()
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{
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LOG(Media, "HTMLSourceElement::scheduleErrorEvent - %p", this);
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if (m_errorEventTimer.isActive())
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return;
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m_errorEventTimer.startOneShot(0_s);
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}
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void HTMLSourceElement::cancelPendingErrorEvent()
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{
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LOG(Media, "HTMLSourceElement::cancelPendingErrorEvent - %p", this);
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m_errorEventTimer.stop();
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}
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void HTMLSourceElement::errorEventTimerFired()
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{
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LOG(Media, "HTMLSourceElement::errorEventTimerFired - %p", this);
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dispatchEvent(Event::create(eventNames().errorEvent, Event::CanBubble::No, Event::IsCancelable::Yes));
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}
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bool HTMLSourceElement::isURLAttribute(const Attribute& attribute) const
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{
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return attribute.name() == srcAttr || HTMLElement::isURLAttribute(attribute);
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}
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const char* HTMLSourceElement::activeDOMObjectName() const
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{
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return "HTMLSourceElement";
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}
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void HTMLSourceElement::suspend(ReasonForSuspension reason)
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{
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// FIXME: Shouldn't this also stop the timer for PageWillBeSuspended?
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if (reason == ReasonForSuspension::BackForwardCache) {
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m_shouldRescheduleErrorEventOnResume = m_errorEventTimer.isActive();
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m_errorEventTimer.stop();
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}
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}
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void HTMLSourceElement::resume()
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{
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if (m_shouldRescheduleErrorEventOnResume) {
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m_errorEventTimer.startOneShot(0_s);
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m_shouldRescheduleErrorEventOnResume = false;
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}
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}
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void HTMLSourceElement::stop()
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{
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cancelPendingErrorEvent();
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}
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void HTMLSourceElement::parseAttribute(const QualifiedName& name, const AtomString& value)
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{
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HTMLElement::parseAttribute(name, value);
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if (name == srcsetAttr || name == sizesAttr || name == mediaAttr || name == typeAttr) {
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if (name == mediaAttr)
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m_cachedParsedMediaAttribute = std::nullopt;
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auto parent = makeRefPtr(parentNode());
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if (m_shouldCallSourcesChanged)
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downcast<HTMLPictureElement>(*parent).sourcesChanged();
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}
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#if ENABLE(MODEL_ELEMENT)
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if (name == srcAttr || name == typeAttr) {
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RefPtr<Element> parent = parentElement();
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if (is<HTMLModelElement>(parent))
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downcast<HTMLModelElement>(*parent).sourcesChanged();
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}
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#endif
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}
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const MediaQuerySet* HTMLSourceElement::parsedMediaAttribute(Document& document) const
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{
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if (!m_cachedParsedMediaAttribute) {
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RefPtr<const MediaQuerySet> parsedAttribute;
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auto& value = attributeWithoutSynchronization(mediaAttr);
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if (!value.isNull())
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parsedAttribute = MediaQuerySet::create(value, MediaQueryParserContext(document));
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m_cachedParsedMediaAttribute = WTFMove(parsedAttribute);
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}
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return m_cachedParsedMediaAttribute.value().get();
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}
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void HTMLSourceElement::attributeChanged(const QualifiedName& name, const AtomString& oldValue, const AtomString& newValue, AttributeModificationReason reason)
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{
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if (name == widthAttr || name == heightAttr) {
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if (RefPtr parent = parentNode(); is<HTMLPictureElement>(parent))
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downcast<HTMLPictureElement>(*parent).sourceDimensionAttributesChanged(*this);
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}
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HTMLElement::attributeChanged(name, oldValue, newValue, reason);
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}
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}
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