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#pragma once
29
30#if ENABLE(MATHML)
31
32#include "MathMLElement.h"
33
34namespace WebCore {
35
36class MathMLPresentationElement : public MathMLElement {
37 WTF_MAKE_ISO_ALLOCATED(MathMLPresentationElement);
38public:
39 static Ref<MathMLPresentationElement> create(const QualifiedName& tagName, Document&);
40
41protected:
42 MathMLPresentationElement(const QualifiedName& tagName, Document&);
43 void parseAttribute(const QualifiedName&, const AtomicString&) override;
44
45 static bool isPhrasingContent(const Node&);
46 static bool isFlowContent(const Node&);
47
48 static Optional<bool> toOptionalBool(const BooleanValue& value) { return value == BooleanValue::Default ? WTF::nullopt : Optional<bool>(value == BooleanValue::True); }
49 const BooleanValue& cachedBooleanAttribute(const QualifiedName&, Optional<BooleanValue>&);
50
51 static Length parseMathMLLength(const String&);
52 const Length& cachedMathMLLength(const QualifiedName&, Optional<Length>&);
53
54 virtual bool acceptsDisplayStyleAttribute();
55 Optional<bool> specifiedDisplayStyle() override;
56
57 virtual bool acceptsMathVariantAttribute() { return false; }
58 Optional<MathVariant> specifiedMathVariant() final;
59
60 Optional<BooleanValue> m_displayStyle;
61 Optional<MathVariant> m_mathVariant;
62
63private:
64 RenderPtr<RenderElement> createElementRenderer(RenderStyle&&, const RenderTreePosition&) override;
65 bool isPresentationMathML() const final { return true; }
66
67 static Length parseNumberAndUnit(const StringView&);
68 static Length parseNamedSpace(const StringView&);
69 static MathVariant parseMathVariantAttribute(const AtomicString& attributeValue);
70};
71
72}
73
74#endif // ENABLE(MATHML)
75