111 lines
4.3 KiB
C++
111 lines
4.3 KiB
C++
/*
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* Copyright (C) 2016 Igalia S.L. 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY 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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*/
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#include "config.h"
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#include "MathMLAnnotationElement.h"
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#if ENABLE(MATHML)
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#include "HTMLHtmlElement.h"
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#include "MathMLMathElement.h"
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#include "MathMLNames.h"
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#include "MathMLSelectElement.h"
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#include "RenderMathMLBlock.h"
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#include "SVGSVGElement.h"
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#include <wtf/IsoMallocInlines.h>
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namespace WebCore {
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WTF_MAKE_ISO_ALLOCATED_IMPL(MathMLAnnotationElement);
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using namespace MathMLNames;
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MathMLAnnotationElement::MathMLAnnotationElement(const QualifiedName& tagName, Document& document)
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: MathMLPresentationElement(tagName, document)
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{
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ASSERT(hasTagName(annotationTag) || hasTagName(annotation_xmlTag));
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}
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Ref<MathMLAnnotationElement> MathMLAnnotationElement::create(const QualifiedName& tagName, Document& document)
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{
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return adoptRef(*new MathMLAnnotationElement(tagName, document));
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}
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RenderPtr<RenderElement> MathMLAnnotationElement::createElementRenderer(RenderStyle&& style, const RenderTreePosition& insertionPosition)
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{
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if (hasTagName(MathMLNames::annotationTag))
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return MathMLElement::createElementRenderer(WTFMove(style), insertionPosition);
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ASSERT(hasTagName(annotation_xmlTag));
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return createRenderer<RenderMathMLBlock>(*this, WTFMove(style));
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}
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bool MathMLAnnotationElement::childShouldCreateRenderer(const Node& child) const
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{
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// For <annotation>, only text children are allowed.
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if (hasTagName(MathMLNames::annotationTag))
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return child.isTextNode();
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// For <annotation-xml>, we follow these definitions from the HTML5 RelaxNG schema:
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// - annotation-xml.model.mathml
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// - annotation-xml.model.svg
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// - annotation-xml.model.xhtml
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ASSERT(hasTagName(annotation_xmlTag));
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auto& value = attributeWithoutSynchronization(encodingAttr);
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if (is<MathMLElement>(child) && (MathMLSelectElement::isMathMLEncoding(value) || MathMLSelectElement::isHTMLEncoding(value))) {
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auto& mathmlElement = downcast<MathMLElement>(child);
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return is<MathMLMathElement>(mathmlElement);
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}
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if (is<SVGElement>(child) && (MathMLSelectElement::isSVGEncoding(value) || MathMLSelectElement::isHTMLEncoding(value))) {
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auto& svgElement = downcast<SVGElement>(child);
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return is<SVGSVGElement>(svgElement);
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}
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if (is<HTMLElement>(child) && MathMLSelectElement::isHTMLEncoding(value)) {
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auto& htmlElement = downcast<HTMLElement>(child);
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return is<HTMLHtmlElement>(htmlElement) || (isFlowContent(htmlElement) && StyledElement::childShouldCreateRenderer(child));
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}
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return false;
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}
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void MathMLAnnotationElement::attributeChanged(const QualifiedName& name, const AtomString& oldValue, const AtomString& newValue, AttributeModificationReason reason)
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{
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if (name == MathMLNames::srcAttr || name == MathMLNames::encodingAttr) {
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auto* parent = parentElement();
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if (is<MathMLElement>(parent) && parent->hasTagName(semanticsTag))
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downcast<MathMLElement>(*parent).updateSelectedChild();
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}
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MathMLPresentationElement::attributeChanged(name, oldValue, newValue, reason);
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}
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}
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#endif // ENABLE(MATHML)
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