1/*
2 * Copyright (C) 2016 Igalia S.L. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
14 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
15 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
16 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
17 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
19 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#if ENABLE(MATHML)
29
30#include "MathMLOperatorDictionary.h"
31#include "MathMLTokenElement.h"
32
33namespace WebCore {
34
35class MathMLOperatorElement final : public MathMLTokenElement {
36 WTF_MAKE_ISO_ALLOCATED(MathMLOperatorElement);
37public:
38 static Ref<MathMLOperatorElement> create(const QualifiedName& tagName, Document&);
39 struct OperatorChar {
40 UChar32 character { 0 };
41 bool isVertical { true };
42 };
43 static OperatorChar parseOperatorChar(const String&);
44 const OperatorChar& operatorChar();
45 void setOperatorFormDirty() { m_dictionaryProperty = WTF::nullopt; }
46 MathMLOperatorDictionary::Form form() { return dictionaryProperty().form; }
47 bool hasProperty(MathMLOperatorDictionary::Flag);
48 Length defaultLeadingSpace();
49 Length defaultTrailingSpace();
50 const Length& leadingSpace();
51 const Length& trailingSpace();
52 const Length& minSize();
53 const Length& maxSize();
54
55private:
56 MathMLOperatorElement(const QualifiedName& tagName, Document&);
57 RenderPtr<RenderElement> createElementRenderer(RenderStyle&&, const RenderTreePosition&) final;
58 void childrenChanged(const ChildChange&) final;
59 void parseAttribute(const QualifiedName&, const AtomicString&) final;
60
61 Optional<OperatorChar> m_operatorChar;
62
63 Optional<MathMLOperatorDictionary::Property> m_dictionaryProperty;
64 MathMLOperatorDictionary::Property computeDictionaryProperty();
65 const MathMLOperatorDictionary::Property& dictionaryProperty();
66
67 struct OperatorProperties {
68 unsigned short flags;
69 unsigned short dirtyFlags { MathMLOperatorDictionary::allFlags };
70 };
71 OperatorProperties m_properties;
72 void computeOperatorFlag(MathMLOperatorDictionary::Flag);
73
74 Optional<Length> m_leadingSpace;
75 Optional<Length> m_trailingSpace;
76 Optional<Length> m_minSize;
77 Optional<Length> m_maxSize;
78};
79
80}
81
82#endif // ENABLE(MATHML)
83