1/*
2 * Copyright (C) 2009 Alex Milowski (alex@milowski.com). All rights reserved.
3 * Copyright (C) 2010 Apple Inc. All rights reserved.
4 * Copyright (C) 2016 Igalia S.L.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include "config.h"
29#include "MathMLMathElement.h"
30
31#if ENABLE(MATHML)
32
33#include "MathMLNames.h"
34#include "RenderMathMLMath.h"
35#include <wtf/IsoMallocInlines.h>
36
37namespace WebCore {
38
39WTF_MAKE_ISO_ALLOCATED_IMPL(MathMLMathElement);
40
41using namespace MathMLNames;
42
43inline MathMLMathElement::MathMLMathElement(const QualifiedName& tagName, Document& document)
44 : MathMLRowElement(tagName, document)
45{
46 setHasCustomStyleResolveCallbacks();
47}
48
49Ref<MathMLMathElement> MathMLMathElement::create(const QualifiedName& tagName, Document& document)
50{
51 return adoptRef(*new MathMLMathElement(tagName, document));
52}
53
54RenderPtr<RenderElement> MathMLMathElement::createElementRenderer(RenderStyle&& style, const RenderTreePosition&)
55{
56 return createRenderer<RenderMathMLMath>(*this, WTFMove(style));
57}
58
59Optional<bool> MathMLMathElement::specifiedDisplayStyle()
60{
61 if (cachedBooleanAttribute(displaystyleAttr, m_displayStyle) == BooleanValue::Default) {
62 // The default displaystyle value of the <math> depends on the display attribute, so we parse it here.
63 auto& value = attributeWithoutSynchronization(displayAttr);
64 if (value == "block")
65 m_displayStyle = BooleanValue::True;
66 else if (value == "inline")
67 m_displayStyle = BooleanValue::False;
68 }
69 return toOptionalBool(m_displayStyle.value());
70}
71
72void MathMLMathElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
73{
74 bool displayStyleAttribute = (name == displaystyleAttr || name == displayAttr);
75 bool mathVariantAttribute = name == mathvariantAttr;
76 if (displayStyleAttribute)
77 m_displayStyle = WTF::nullopt;
78 if (mathVariantAttribute)
79 m_mathVariant = WTF::nullopt;
80 if ((displayStyleAttribute || mathVariantAttribute) && renderer())
81 MathMLStyle::resolveMathMLStyleTree(renderer());
82
83 MathMLElement::parseAttribute(name, value);
84}
85
86void MathMLMathElement::didAttachRenderers()
87{
88 MathMLRowElement::didAttachRenderers();
89
90 MathMLStyle::resolveMathMLStyleTree(renderer());
91}
92
93}
94
95#endif // ENABLE(MATHML)
96