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#include "config.h"
27#include "RenderMathMLFencedOperator.h"
28
29#if ENABLE(MATHML)
30
31#include "MathMLOperatorDictionary.h"
32#include "MathMLOperatorElement.h"
33#include <wtf/IsoMallocInlines.h>
34
35namespace WebCore {
36
37using namespace MathMLOperatorDictionary;
38
39WTF_MAKE_ISO_ALLOCATED_IMPL(RenderMathMLFencedOperator);
40
41RenderMathMLFencedOperator::RenderMathMLFencedOperator(Document& document, RenderStyle&& style, const String& operatorString, MathMLOperatorDictionary::Form form, unsigned short flags)
42 : RenderMathMLOperator(document, WTFMove(style))
43 , m_operatorForm(form)
44 , m_operatorFlags(flags)
45{
46 updateOperatorContent(operatorString);
47}
48
49void RenderMathMLFencedOperator::updateOperatorContent(const String& operatorString)
50{
51 m_operatorChar = MathMLOperatorElement::parseOperatorChar(operatorString);
52
53 // We try and read spacing and boolean properties from the operator dictionary.
54 // However we preserve the Fence and Separator properties specified in the constructor.
55 if (auto entry = search(m_operatorChar.character, m_operatorForm, true)) {
56 m_leadingSpaceInMathUnit = entry.value().leadingSpaceInMathUnit;
57 m_trailingSpaceInMathUnit = entry.value().trailingSpaceInMathUnit;
58 m_operatorFlags = (m_operatorFlags & (MathMLOperatorDictionary::Fence | MathMLOperatorDictionary::Separator)) | entry.value().flags;
59 } else {
60 m_operatorFlags &= MathMLOperatorDictionary::Fence | MathMLOperatorDictionary::Separator; // Flags are disabled by default.
61 m_leadingSpaceInMathUnit = 5; // Default spacing is thickmathspace.
62 m_trailingSpaceInMathUnit = 5; // Default spacing is thickmathspace.
63 }
64
65 updateMathOperator();
66}
67
68LayoutUnit RenderMathMLFencedOperator::leadingSpace() const
69{
70 MathMLElement::Length leadingSpace;
71 leadingSpace.type = MathMLElement::LengthType::MathUnit;
72 leadingSpace.value = static_cast<float>(m_leadingSpaceInMathUnit);
73 return toUserUnits(leadingSpace, style(), 0);
74}
75
76LayoutUnit RenderMathMLFencedOperator::trailingSpace() const
77{
78 MathMLElement::Length trailingSpace;
79 trailingSpace.type = MathMLElement::LengthType::MathUnit;
80 trailingSpace.value = static_cast<float>(m_trailingSpaceInMathUnit);
81 return toUserUnits(trailingSpace, style(), 0);
82}
83
84}
85
86#endif
87