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1 /* | 1 /* |
2 * Copyright (C) 2011 Leo Yang <leoyang@webkit.org> | 2 * Copyright (C) 2011 Leo Yang <leoyang@webkit.org> |
3 * | 3 * |
4 * This library is free software; you can redistribute it and/or | 4 * This library is free software; you can redistribute it and/or |
5 * modify it under the terms of the GNU Library General Public | 5 * modify it under the terms of the GNU Library General Public |
6 * License as published by the Free Software Foundation; either | 6 * License as published by the Free Software Foundation; either |
7 * version 2 of the License, or (at your option) any later version. | 7 * version 2 of the License, or (at your option) any later version. |
8 * | 8 * |
9 * This library is distributed in the hope that it will be useful, | 9 * This library is distributed in the hope that it will be useful, |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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32 : SVGElement(SVGNames::altGlyphDefTag, document) | 32 : SVGElement(SVGNames::altGlyphDefTag, document) |
33 { | 33 { |
34 ScriptWrappable::init(this); | 34 ScriptWrappable::init(this); |
35 } | 35 } |
36 | 36 |
37 PassRefPtr<SVGAltGlyphDefElement> SVGAltGlyphDefElement::create(Document& docume
nt) | 37 PassRefPtr<SVGAltGlyphDefElement> SVGAltGlyphDefElement::create(Document& docume
nt) |
38 { | 38 { |
39 return adoptRef(new SVGAltGlyphDefElement(document)); | 39 return adoptRef(new SVGAltGlyphDefElement(document)); |
40 } | 40 } |
41 | 41 |
42 bool SVGAltGlyphDefElement::hasValidGlyphElements(Vector<String>& glyphNames) co
nst | 42 bool SVGAltGlyphDefElement::hasValidGlyphElements(Vector<AtomicString>& glyphNam
es) const |
43 { | 43 { |
44 // Spec: http://www.w3.org/TR/SVG/text.html#AltGlyphDefElement | 44 // Spec: http://www.w3.org/TR/SVG/text.html#AltGlyphDefElement |
45 // An 'altGlyphDef' can contain either of the following: | 45 // An 'altGlyphDef' can contain either of the following: |
46 // | 46 // |
47 // 1. In the simplest case, an 'altGlyphDef' contains one or more 'glyphRef'
elements. | 47 // 1. In the simplest case, an 'altGlyphDef' contains one or more 'glyphRef'
elements. |
48 // Each 'glyphRef' element references a single glyph within a particular fon
t. | 48 // Each 'glyphRef' element references a single glyph within a particular fon
t. |
49 // If all of the referenced glyphs are available, then these glyphs are rend
ered | 49 // If all of the referenced glyphs are available, then these glyphs are rend
ered |
50 // instead of the character(s) inside of the referencing 'altGlyph' element. | 50 // instead of the character(s) inside of the referencing 'altGlyph' element. |
51 // If any of the referenced glyphs are unavailable, then the character(s) th
at are | 51 // If any of the referenced glyphs are unavailable, then the character(s) th
at are |
52 // inside of the 'altGlyph' element are rendered as if there were not an 'al
tGlyph' | 52 // inside of the 'altGlyph' element are rendered as if there were not an 'al
tGlyph' |
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84 // For b), the content model is 2), so we will use <glyphRef> elements conta
ined in | 84 // For b), the content model is 2), so we will use <glyphRef> elements conta
ined in |
85 // "i1" if they are valid and "g1" and "g2" are skipped. | 85 // "i1" if they are valid and "g1" and "g2" are skipped. |
86 | 86 |
87 // These 2 variables are used to determine content model. | 87 // These 2 variables are used to determine content model. |
88 bool fountFirstGlyphRef = false; | 88 bool fountFirstGlyphRef = false; |
89 bool foundFirstAltGlyphItem = false; | 89 bool foundFirstAltGlyphItem = false; |
90 | 90 |
91 for (Node* child = firstChild(); child; child = child->nextSibling()) { | 91 for (Node* child = firstChild(); child; child = child->nextSibling()) { |
92 if (!foundFirstAltGlyphItem && child->hasTagName(SVGNames::glyphRefTag))
{ | 92 if (!foundFirstAltGlyphItem && child->hasTagName(SVGNames::glyphRefTag))
{ |
93 fountFirstGlyphRef = true; | 93 fountFirstGlyphRef = true; |
94 String referredGlyphName; | 94 AtomicString referredGlyphName; |
95 | 95 |
96 if (toSVGGlyphRefElement(child)->hasValidGlyphElement(referredGlyphN
ame)) | 96 if (toSVGGlyphRefElement(child)->hasValidGlyphElement(referredGlyphN
ame)) |
97 glyphNames.append(referredGlyphName); | 97 glyphNames.append(referredGlyphName); |
98 else { | 98 else { |
99 // As the spec says "If any of the referenced glyphs are unavail
able, | 99 // As the spec says "If any of the referenced glyphs are unavail
able, |
100 // then the character(s) that are inside of the 'altGlyph' eleme
nt are | 100 // then the character(s) that are inside of the 'altGlyph' eleme
nt are |
101 // rendered as if there were not an 'altGlyph' element surroundi
ng | 101 // rendered as if there were not an 'altGlyph' element surroundi
ng |
102 // those characters.". | 102 // those characters.". |
103 glyphNames.clear(); | 103 glyphNames.clear(); |
104 return false; | 104 return false; |
105 } | 105 } |
106 } else if (!fountFirstGlyphRef && child->hasTagName(SVGNames::altGlyphIt
emTag)) { | 106 } else if (!fountFirstGlyphRef && child->hasTagName(SVGNames::altGlyphIt
emTag)) { |
107 foundFirstAltGlyphItem = true; | 107 foundFirstAltGlyphItem = true; |
108 Vector<String> referredGlyphNames; | 108 Vector<AtomicString> referredGlyphNames; |
109 | 109 |
110 // As the spec says "The first 'altGlyphItem' in which all reference
d glyphs | 110 // As the spec says "The first 'altGlyphItem' in which all reference
d glyphs |
111 // are available is chosen." | 111 // are available is chosen." |
112 if (static_cast<SVGAltGlyphItemElement*>(child)->hasValidGlyphElemen
ts(glyphNames) && !glyphNames.isEmpty()) | 112 if (static_cast<SVGAltGlyphItemElement*>(child)->hasValidGlyphElemen
ts(glyphNames) && !glyphNames.isEmpty()) |
113 return true; | 113 return true; |
114 } | 114 } |
115 } | 115 } |
116 return !glyphNames.isEmpty(); | 116 return !glyphNames.isEmpty(); |
117 } | 117 } |
118 | 118 |
119 } | 119 } |
120 | 120 |
121 #endif | 121 #endif |
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