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 "MathMLTokenElement.h"
30
31#if ENABLE(MATHML)
32
33#include "HTTPParsers.h"
34#include "MathMLNames.h"
35#include "RenderMathMLToken.h"
36#include <wtf/IsoMallocInlines.h>
37
38namespace WebCore {
39
40WTF_MAKE_ISO_ALLOCATED_IMPL(MathMLTokenElement);
41
42using namespace MathMLNames;
43
44MathMLTokenElement::MathMLTokenElement(const QualifiedName& tagName, Document& document)
45 : MathMLPresentationElement(tagName, document)
46{
47 setHasCustomStyleResolveCallbacks();
48}
49
50Ref<MathMLTokenElement> MathMLTokenElement::create(const QualifiedName& tagName, Document& document)
51{
52 return adoptRef(*new MathMLTokenElement(tagName, document));
53}
54
55void MathMLTokenElement::didAttachRenderers()
56{
57 MathMLPresentationElement::didAttachRenderers();
58 auto* mathmlRenderer = renderer();
59 if (is<RenderMathMLToken>(mathmlRenderer))
60 downcast<RenderMathMLToken>(*mathmlRenderer).updateTokenContent();
61}
62
63void MathMLTokenElement::childrenChanged(const ChildChange& change)
64{
65 MathMLPresentationElement::childrenChanged(change);
66 auto* mathmlRenderer = renderer();
67 if (is<RenderMathMLToken>(mathmlRenderer))
68 downcast<RenderMathMLToken>(*mathmlRenderer).updateTokenContent();
69}
70
71RenderPtr<RenderElement> MathMLTokenElement::createElementRenderer(RenderStyle&& style, const RenderTreePosition&)
72{
73 ASSERT(hasTagName(MathMLNames::miTag) || hasTagName(MathMLNames::mnTag) || hasTagName(MathMLNames::msTag) || hasTagName(MathMLNames::mtextTag));
74
75 return createRenderer<RenderMathMLToken>(*this, WTFMove(style));
76}
77
78bool MathMLTokenElement::childShouldCreateRenderer(const Node& child) const
79{
80 // The HTML specification defines <mi>, <mo>, <mn>, <ms> and <mtext> as insertion points.
81 return isPhrasingContent(child) && StyledElement::childShouldCreateRenderer(child);
82}
83
84Optional<UChar32> MathMLTokenElement::convertToSingleCodePoint(StringView string)
85{
86 auto codePoints = stripLeadingAndTrailingHTTPSpaces(string).codePoints();
87 auto iterator = codePoints.begin();
88 if (iterator == codePoints.end())
89 return WTF::nullopt;
90 Optional<UChar32> character = *iterator;
91 ++iterator;
92 return iterator == codePoints.end() ? character : WTF::nullopt;
93}
94
95}
96
97#endif // ENABLE(MATHML)
98