1 | /* |
2 | * Copyright (C) 2012 Company 100, Inc. All rights reserved. |
3 | * Copyright (C) 2015 Apple Inc. All rights reserved. |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
8 | * 1. Redistributions of source code must retain the above copyright |
9 | * notice, this list of conditions and the following disclaimer. |
10 | * 2. Redistributions in binary form must reproduce the above copyright |
11 | * notice, this list of conditions and the following disclaimer in the |
12 | * documentation and/or other materials provided with the distribution. |
13 | * |
14 | * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY |
15 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
17 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR |
18 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
19 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
20 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
21 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
22 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
24 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
25 | */ |
26 | |
27 | #pragma once |
28 | |
29 | #include "AtomicHTMLToken.h" |
30 | #include "DocumentFragment.h" |
31 | #include "Element.h" |
32 | #include "HTMLNames.h" |
33 | #include "MathMLNames.h" |
34 | #include "SVGNames.h" |
35 | |
36 | namespace WebCore { |
37 | |
38 | class HTMLStackItem : public RefCounted<HTMLStackItem> { |
39 | public: |
40 | // Normal HTMLElementStack and HTMLFormattingElementList items. |
41 | static Ref<HTMLStackItem> create(Ref<Element>&&, AtomicHTMLToken&&, const AtomicString& namespaceURI = HTMLNames::xhtmlNamespaceURI); |
42 | static Ref<HTMLStackItem> create(Ref<Element>&&, const AtomicString&, Vector<Attribute>&&); |
43 | |
44 | // Document fragment or element for parsing context. |
45 | static Ref<HTMLStackItem> create(Element&); |
46 | static Ref<HTMLStackItem> create(DocumentFragment&); |
47 | |
48 | bool isElement() const; |
49 | bool isDocumentFragment() const; |
50 | |
51 | ContainerNode& node() const; |
52 | Element& element() const; |
53 | |
54 | const AtomicString& namespaceURI() const; |
55 | const AtomicString& localName() const; |
56 | |
57 | const Vector<Attribute>& attributes() const; |
58 | const Attribute* findAttribute(const QualifiedName& attributeName) const; |
59 | |
60 | bool hasTagName(const QualifiedName&) const; |
61 | bool matchesHTMLTag(const AtomicString&) const; |
62 | |
63 | private: |
64 | HTMLStackItem(Ref<Element>&&, AtomicHTMLToken&&, const AtomicString& namespaceURI); |
65 | HTMLStackItem(Ref<Element>&&, const AtomicString& localName, const AtomicString& namespaceURI, Vector<Attribute>&&); |
66 | explicit HTMLStackItem(Element&); |
67 | explicit HTMLStackItem(DocumentFragment&); |
68 | |
69 | const Ref<ContainerNode> m_node; |
70 | const AtomicString m_namespaceURI; |
71 | const AtomicString m_localName; |
72 | const Vector<Attribute> m_attributes; |
73 | }; |
74 | |
75 | bool isInHTMLNamespace(const HTMLStackItem&); |
76 | bool isNumberedHeaderElement(const HTMLStackItem&); |
77 | bool isSpecialNode(const HTMLStackItem&); |
78 | |
79 | inline HTMLStackItem::HTMLStackItem(Ref<Element>&& element, AtomicHTMLToken&& token, const AtomicString& namespaceURI = HTMLNames::xhtmlNamespaceURI) |
80 | : m_node(WTFMove(element)) |
81 | , m_namespaceURI(namespaceURI) |
82 | , m_localName(token.name()) |
83 | , m_attributes(WTFMove(token.attributes())) |
84 | { |
85 | } |
86 | |
87 | inline Ref<HTMLStackItem> HTMLStackItem::create(Ref<Element>&& element, AtomicHTMLToken&& token, const AtomicString& namespaceURI) |
88 | { |
89 | return adoptRef(*new HTMLStackItem(WTFMove(element), WTFMove(token), namespaceURI)); |
90 | } |
91 | |
92 | inline HTMLStackItem::HTMLStackItem(Ref<Element>&& element, const AtomicString& localName, const AtomicString& namespaceURI, Vector<Attribute>&& attributes) |
93 | : m_node(WTFMove(element)) |
94 | , m_namespaceURI(namespaceURI) |
95 | , m_localName(localName) |
96 | , m_attributes(WTFMove(attributes)) |
97 | { |
98 | } |
99 | |
100 | inline Ref<HTMLStackItem> HTMLStackItem::create(Ref<Element>&& element, const AtomicString& localName, Vector<Attribute>&& attributes) |
101 | { |
102 | auto& namespaceURI = element.get().namespaceURI(); |
103 | return adoptRef(*new HTMLStackItem(WTFMove(element), localName, namespaceURI, WTFMove(attributes))); |
104 | } |
105 | |
106 | inline HTMLStackItem::HTMLStackItem(Element& element) |
107 | : m_node(element) |
108 | , m_namespaceURI(element.namespaceURI()) |
109 | , m_localName(element.localName()) |
110 | { |
111 | } |
112 | |
113 | inline Ref<HTMLStackItem> HTMLStackItem::create(Element& element) |
114 | { |
115 | return adoptRef(*new HTMLStackItem(element)); |
116 | } |
117 | |
118 | inline HTMLStackItem::HTMLStackItem(DocumentFragment& fragment) |
119 | : m_node(fragment) |
120 | { |
121 | } |
122 | |
123 | inline Ref<HTMLStackItem> HTMLStackItem::create(DocumentFragment& fragment) |
124 | { |
125 | return adoptRef(*new HTMLStackItem(fragment)); |
126 | } |
127 | |
128 | inline ContainerNode& HTMLStackItem::node() const |
129 | { |
130 | return m_node.get(); |
131 | } |
132 | |
133 | inline Element& HTMLStackItem::element() const |
134 | { |
135 | return downcast<Element>(node()); |
136 | } |
137 | |
138 | inline bool HTMLStackItem::isDocumentFragment() const |
139 | { |
140 | return m_localName.isNull(); |
141 | } |
142 | |
143 | inline bool HTMLStackItem::isElement() const |
144 | { |
145 | return !isDocumentFragment(); |
146 | } |
147 | |
148 | inline const AtomicString& HTMLStackItem::namespaceURI() const |
149 | { |
150 | return m_namespaceURI; |
151 | } |
152 | |
153 | inline const AtomicString& HTMLStackItem::localName() const |
154 | { |
155 | return m_localName; |
156 | } |
157 | |
158 | inline const Vector<Attribute>& HTMLStackItem::attributes() const |
159 | { |
160 | ASSERT(isElement()); |
161 | return m_attributes; |
162 | } |
163 | |
164 | inline const Attribute* HTMLStackItem::findAttribute(const QualifiedName& attributeName) const |
165 | { |
166 | return WebCore::findAttribute(const_cast<Vector<Attribute>&>(attributes()), attributeName); |
167 | } |
168 | |
169 | inline bool HTMLStackItem::hasTagName(const QualifiedName& name) const |
170 | { |
171 | return m_localName == name.localName() && m_namespaceURI == name.namespaceURI(); |
172 | } |
173 | |
174 | inline bool HTMLStackItem::matchesHTMLTag(const AtomicString& name) const |
175 | { |
176 | return m_localName == name && m_namespaceURI == HTMLNames::xhtmlNamespaceURI; |
177 | } |
178 | |
179 | inline bool isInHTMLNamespace(const HTMLStackItem& item) |
180 | { |
181 | // A DocumentFragment takes the place of the document element when parsing |
182 | // fragments and thus should be treated as if it was in the HTML namespace. |
183 | // FIXME: Is this also needed for a ShadowRoot that might be a non-HTML element? |
184 | return item.namespaceURI() == HTMLNames::xhtmlNamespaceURI || item.isDocumentFragment(); |
185 | } |
186 | |
187 | inline bool (const HTMLStackItem& item) |
188 | { |
189 | return item.namespaceURI() == HTMLNames::xhtmlNamespaceURI |
190 | && (item.localName() == HTMLNames::h1Tag |
191 | || item.localName() == HTMLNames::h2Tag |
192 | || item.localName() == HTMLNames::h3Tag |
193 | || item.localName() == HTMLNames::h4Tag |
194 | || item.localName() == HTMLNames::h5Tag |
195 | || item.localName() == HTMLNames::h6Tag); |
196 | } |
197 | |
198 | // http://www.whatwg.org/specs/web-apps/current-work/multipage/parsing.html#special |
199 | inline bool isSpecialNode(const HTMLStackItem& item) |
200 | { |
201 | if (item.isDocumentFragment()) |
202 | return true; |
203 | const AtomicString& tagName = item.localName(); |
204 | if (item.namespaceURI() == HTMLNames::xhtmlNamespaceURI) { |
205 | return tagName == HTMLNames::addressTag |
206 | || tagName == HTMLNames::appletTag |
207 | || tagName == HTMLNames::areaTag |
208 | || tagName == HTMLNames::articleTag |
209 | || tagName == HTMLNames::asideTag |
210 | || tagName == HTMLNames::baseTag |
211 | || tagName == HTMLNames::basefontTag |
212 | || tagName == HTMLNames::bgsoundTag |
213 | || tagName == HTMLNames::blockquoteTag |
214 | || tagName == HTMLNames::bodyTag |
215 | || tagName == HTMLNames::brTag |
216 | || tagName == HTMLNames::buttonTag |
217 | || tagName == HTMLNames::captionTag |
218 | || tagName == HTMLNames::centerTag |
219 | || tagName == HTMLNames::colTag |
220 | || tagName == HTMLNames::colgroupTag |
221 | || tagName == HTMLNames::commandTag |
222 | || tagName == HTMLNames::ddTag |
223 | || tagName == HTMLNames::detailsTag |
224 | || tagName == HTMLNames::dirTag |
225 | || tagName == HTMLNames::divTag |
226 | || tagName == HTMLNames::dlTag |
227 | || tagName == HTMLNames::dtTag |
228 | || tagName == HTMLNames::embedTag |
229 | || tagName == HTMLNames::fieldsetTag |
230 | || tagName == HTMLNames::figcaptionTag |
231 | || tagName == HTMLNames::figureTag |
232 | || tagName == HTMLNames::footerTag |
233 | || tagName == HTMLNames::formTag |
234 | || tagName == HTMLNames::frameTag |
235 | || tagName == HTMLNames::framesetTag |
236 | || tagName == HTMLNames::h1Tag |
237 | || tagName == HTMLNames::h2Tag |
238 | || tagName == HTMLNames::h3Tag |
239 | || tagName == HTMLNames::h4Tag |
240 | || tagName == HTMLNames::h5Tag |
241 | || tagName == HTMLNames::h6Tag |
242 | || tagName == HTMLNames::headTag |
243 | || tagName == HTMLNames::headerTag |
244 | || tagName == HTMLNames::hgroupTag |
245 | || tagName == HTMLNames::hrTag |
246 | || tagName == HTMLNames::htmlTag |
247 | || tagName == HTMLNames::iframeTag |
248 | || tagName == HTMLNames::imgTag |
249 | || tagName == HTMLNames::inputTag |
250 | || tagName == HTMLNames::liTag |
251 | || tagName == HTMLNames::linkTag |
252 | || tagName == HTMLNames::listingTag |
253 | || tagName == HTMLNames::mainTag |
254 | || tagName == HTMLNames::marqueeTag |
255 | || tagName == HTMLNames::menuTag |
256 | || tagName == HTMLNames::metaTag |
257 | || tagName == HTMLNames::navTag |
258 | || tagName == HTMLNames::noembedTag |
259 | || tagName == HTMLNames::noframesTag |
260 | || tagName == HTMLNames::noscriptTag |
261 | || tagName == HTMLNames::objectTag |
262 | || tagName == HTMLNames::olTag |
263 | || tagName == HTMLNames::pTag |
264 | || tagName == HTMLNames::paramTag |
265 | || tagName == HTMLNames::plaintextTag |
266 | || tagName == HTMLNames::preTag |
267 | || tagName == HTMLNames::scriptTag |
268 | || tagName == HTMLNames::sectionTag |
269 | || tagName == HTMLNames::selectTag |
270 | || tagName == HTMLNames::styleTag |
271 | || tagName == HTMLNames::summaryTag |
272 | || tagName == HTMLNames::tableTag |
273 | || tagName == HTMLNames::tbodyTag |
274 | || tagName == HTMLNames::tdTag |
275 | || tagName == HTMLNames::templateTag |
276 | || tagName == HTMLNames::textareaTag |
277 | || tagName == HTMLNames::tfootTag |
278 | || tagName == HTMLNames::thTag |
279 | || tagName == HTMLNames::theadTag |
280 | || tagName == HTMLNames::titleTag |
281 | || tagName == HTMLNames::trTag |
282 | || tagName == HTMLNames::ulTag |
283 | || tagName == HTMLNames::wbrTag |
284 | || tagName == HTMLNames::xmpTag; |
285 | } |
286 | if (item.namespaceURI() == MathMLNames::mathmlNamespaceURI) { |
287 | return tagName == MathMLNames::annotation_xmlTag |
288 | || tagName == MathMLNames::miTag |
289 | || tagName == MathMLNames::moTag |
290 | || tagName == MathMLNames::mnTag |
291 | || tagName == MathMLNames::msTag |
292 | || tagName == MathMLNames::mtextTag; |
293 | } |
294 | if (item.namespaceURI() == SVGNames::svgNamespaceURI) { |
295 | return tagName == SVGNames::descTag |
296 | || tagName == SVGNames::foreignObjectTag |
297 | || tagName == SVGNames::titleTag; |
298 | } |
299 | return false; |
300 | } |
301 | |
302 | } // namespace WebCore |
303 | |