1/*
2 * Copyright (C) 2011 Leo Yang <leoyang@webkit.org>
3 * Copyright (C) 2018 Apple Inc. All rights reserved.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 */
20
21#include "config.h"
22
23#if ENABLE(SVG_FONTS)
24#include "SVGGlyphRefElement.h"
25
26#include "SVGGlyphElement.h"
27#include "SVGNames.h"
28#include "SVGParserUtilities.h"
29#include "XLinkNames.h"
30#include <wtf/IsoMallocInlines.h>
31#include <wtf/text/AtomicString.h>
32
33namespace WebCore {
34
35WTF_MAKE_ISO_ALLOCATED_IMPL(SVGGlyphRefElement);
36
37inline SVGGlyphRefElement::SVGGlyphRefElement(const QualifiedName& tagName, Document& document)
38 : SVGElement(tagName, document)
39 , SVGURIReference(this)
40{
41 ASSERT(hasTagName(SVGNames::glyphRefTag));
42}
43
44Ref<SVGGlyphRefElement> SVGGlyphRefElement::create(const QualifiedName& tagName, Document& document)
45{
46 return adoptRef(*new SVGGlyphRefElement(tagName, document));
47}
48
49bool SVGGlyphRefElement::hasValidGlyphElement(String& glyphName) const
50{
51 // FIXME: We only support xlink:href so far.
52 // https://bugs.webkit.org/show_bug.cgi?id=64787
53 // No need to support glyphRef referencing another node inside a shadow tree.
54 auto target = targetElementFromIRIString(getAttribute(SVGNames::hrefAttr, XLinkNames::hrefAttr), document());
55 glyphName = target.identifier;
56 return is<SVGGlyphElement>(target.element);
57}
58
59static float parseFloat(const AtomicString& value)
60{
61 float result;
62 if (!parseNumberFromString(value, result))
63 return 0;
64 return result;
65}
66
67void SVGGlyphRefElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
68{
69 // FIXME: Is the error handling in parseFloat correct for these attributes?
70 if (name == SVGNames::xAttr)
71 m_x = parseFloat(value);
72 else if (name == SVGNames::yAttr)
73 m_y = parseFloat(value);
74 else if (name == SVGNames::dxAttr)
75 m_dx = parseFloat(value);
76 else if (name == SVGNames::dyAttr)
77 m_dy = parseFloat(value);
78 else {
79 SVGURIReference::parseAttribute(name, value);
80 SVGElement::parseAttribute(name, value);
81 }
82}
83
84void SVGGlyphRefElement::setX(float x)
85{
86 setAttribute(SVGNames::xAttr, AtomicString::number(x));
87}
88
89void SVGGlyphRefElement::setY(float y)
90{
91 setAttribute(SVGNames::yAttr, AtomicString::number(y));
92}
93
94void SVGGlyphRefElement::setDx(float dx)
95{
96 setAttribute(SVGNames::dxAttr, AtomicString::number(dx));
97}
98
99void SVGGlyphRefElement::setDy(float dy)
100{
101 setAttribute(SVGNames::dyAttr, AtomicString::number(dy));
102}
103
104}
105
106#endif
107