1 | /* |
2 | * Copyright (C) 2010 Google, Inc. All Rights Reserved. |
3 | * Copyright (C) 2011-2017 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 | #include "config.h" |
28 | #include "HTMLTreeBuilder.h" |
29 | |
30 | #include "DocumentFragment.h" |
31 | #include "HTMLDocument.h" |
32 | #include "HTMLDocumentParser.h" |
33 | #include "HTMLFormControlElement.h" |
34 | #include "HTMLFormElement.h" |
35 | #include "HTMLInputElement.h" |
36 | #include "HTMLOptGroupElement.h" |
37 | #include "HTMLOptionElement.h" |
38 | #include "HTMLParserIdioms.h" |
39 | #include "HTMLScriptElement.h" |
40 | #include "HTMLTableElement.h" |
41 | #include "JSCustomElementInterface.h" |
42 | #include "LocalizedStrings.h" |
43 | #include "NotImplemented.h" |
44 | #include "SVGScriptElement.h" |
45 | #include "XLinkNames.h" |
46 | #include "XMLNSNames.h" |
47 | #include "XMLNames.h" |
48 | #include <wtf/NeverDestroyed.h> |
49 | #include <wtf/unicode/CharacterNames.h> |
50 | |
51 | #if ENABLE(TELEPHONE_NUMBER_DETECTION) && PLATFORM(IOS_FAMILY) |
52 | #include "TelephoneNumberDetector.h" |
53 | #endif |
54 | |
55 | namespace WebCore { |
56 | |
57 | using namespace HTMLNames; |
58 | |
59 | CustomElementConstructionData::CustomElementConstructionData(Ref<JSCustomElementInterface>&& customElementInterface, const AtomicString& name, Vector<Attribute>&& attributes) |
60 | : elementInterface(WTFMove(customElementInterface)) |
61 | , name(name) |
62 | , attributes(WTFMove(attributes)) |
63 | { |
64 | } |
65 | |
66 | CustomElementConstructionData::~CustomElementConstructionData() = default; |
67 | |
68 | namespace { |
69 | |
70 | inline bool isHTMLSpaceOrReplacementCharacter(UChar character) |
71 | { |
72 | return isHTMLSpace(character) || character == replacementCharacter; |
73 | } |
74 | |
75 | } |
76 | |
77 | static inline TextPosition uninitializedPositionValue1() |
78 | { |
79 | return TextPosition(OrdinalNumber::fromOneBasedInt(-1), OrdinalNumber()); |
80 | } |
81 | |
82 | static inline bool isAllWhitespace(const String& string) |
83 | { |
84 | return string.isAllSpecialCharacters<isHTMLSpace>(); |
85 | } |
86 | |
87 | static inline bool isAllWhitespaceOrReplacementCharacters(const String& string) |
88 | { |
89 | return string.isAllSpecialCharacters<isHTMLSpaceOrReplacementCharacter>(); |
90 | } |
91 | |
92 | static bool (const AtomicString& tagName) |
93 | { |
94 | return tagName == h1Tag |
95 | || tagName == h2Tag |
96 | || tagName == h3Tag |
97 | || tagName == h4Tag |
98 | || tagName == h5Tag |
99 | || tagName == h6Tag; |
100 | } |
101 | |
102 | static bool isCaptionColOrColgroupTag(const AtomicString& tagName) |
103 | { |
104 | return tagName == captionTag || tagName == colTag || tagName == colgroupTag; |
105 | } |
106 | |
107 | static bool isTableCellContextTag(const AtomicString& tagName) |
108 | { |
109 | return tagName == thTag || tagName == tdTag; |
110 | } |
111 | |
112 | static bool isTableBodyContextTag(const AtomicString& tagName) |
113 | { |
114 | return tagName == tbodyTag || tagName == tfootTag || tagName == theadTag; |
115 | } |
116 | |
117 | static bool isNonAnchorNonNobrFormattingTag(const AtomicString& tagName) |
118 | { |
119 | return tagName == bTag |
120 | || tagName == bigTag |
121 | || tagName == codeTag |
122 | || tagName == emTag |
123 | || tagName == fontTag |
124 | || tagName == iTag |
125 | || tagName == sTag |
126 | || tagName == smallTag |
127 | || tagName == strikeTag |
128 | || tagName == strongTag |
129 | || tagName == ttTag |
130 | || tagName == uTag; |
131 | } |
132 | |
133 | static bool isNonAnchorFormattingTag(const AtomicString& tagName) |
134 | { |
135 | return tagName == nobrTag || isNonAnchorNonNobrFormattingTag(tagName); |
136 | } |
137 | |
138 | // https://html.spec.whatwg.org/multipage/syntax.html#formatting |
139 | bool HTMLConstructionSite::isFormattingTag(const AtomicString& tagName) |
140 | { |
141 | return tagName == aTag || isNonAnchorFormattingTag(tagName); |
142 | } |
143 | |
144 | class HTMLTreeBuilder::ExternalCharacterTokenBuffer { |
145 | public: |
146 | explicit ExternalCharacterTokenBuffer(AtomicHTMLToken& token) |
147 | : m_text(token.characters(), token.charactersLength()) |
148 | , m_isAll8BitData(token.charactersIsAll8BitData()) |
149 | { |
150 | ASSERT(!isEmpty()); |
151 | } |
152 | |
153 | explicit ExternalCharacterTokenBuffer(const String& string) |
154 | : m_text(string) |
155 | , m_isAll8BitData(m_text.is8Bit()) |
156 | { |
157 | ASSERT(!isEmpty()); |
158 | } |
159 | |
160 | ~ExternalCharacterTokenBuffer() |
161 | { |
162 | ASSERT(isEmpty()); |
163 | } |
164 | |
165 | bool isEmpty() const { return m_text.isEmpty(); } |
166 | |
167 | bool isAll8BitData() const { return m_isAll8BitData; } |
168 | |
169 | void skipAtMostOneLeadingNewline() |
170 | { |
171 | ASSERT(!isEmpty()); |
172 | if (m_text[0] == '\n') |
173 | m_text = m_text.substring(1); |
174 | } |
175 | |
176 | void skipLeadingWhitespace() |
177 | { |
178 | skipLeading<isHTMLSpace>(); |
179 | } |
180 | |
181 | String takeLeadingWhitespace() |
182 | { |
183 | return takeLeading<isHTMLSpace>(); |
184 | } |
185 | |
186 | void skipLeadingNonWhitespace() |
187 | { |
188 | skipLeading<isNotHTMLSpace>(); |
189 | } |
190 | |
191 | String takeRemaining() |
192 | { |
193 | String result = makeString(m_text); |
194 | m_text = StringView(); |
195 | return result; |
196 | } |
197 | |
198 | void giveRemainingTo(StringBuilder& recipient) |
199 | { |
200 | recipient.append(m_text); |
201 | m_text = StringView(); |
202 | } |
203 | |
204 | String takeRemainingWhitespace() |
205 | { |
206 | ASSERT(!isEmpty()); |
207 | Vector<LChar, 8> whitespace; |
208 | do { |
209 | UChar character = m_text[0]; |
210 | if (isHTMLSpace(character)) |
211 | whitespace.append(character); |
212 | m_text = m_text.substring(1); |
213 | } while (!m_text.isEmpty()); |
214 | |
215 | // Returning the null string when there aren't any whitespace |
216 | // characters is slightly cleaner semantically because we don't want |
217 | // to insert a text node (as opposed to inserting an empty text node). |
218 | if (whitespace.isEmpty()) |
219 | return String(); |
220 | |
221 | return String::adopt(WTFMove(whitespace)); |
222 | } |
223 | |
224 | private: |
225 | template<bool characterPredicate(UChar)> void skipLeading() |
226 | { |
227 | ASSERT(!isEmpty()); |
228 | while (characterPredicate(m_text[0])) { |
229 | m_text = m_text.substring(1); |
230 | if (m_text.isEmpty()) |
231 | return; |
232 | } |
233 | } |
234 | |
235 | template<bool characterPredicate(UChar)> String takeLeading() |
236 | { |
237 | ASSERT(!isEmpty()); |
238 | StringView start = m_text; |
239 | skipLeading<characterPredicate>(); |
240 | if (start.length() == m_text.length()) |
241 | return String(); |
242 | return makeString(start.substring(0, start.length() - m_text.length())); |
243 | } |
244 | |
245 | String makeString(StringView stringView) const |
246 | { |
247 | if (stringView.is8Bit() || !isAll8BitData()) |
248 | return stringView.toString(); |
249 | return String::make8BitFrom16BitSource(stringView.characters16(), stringView.length()); |
250 | } |
251 | |
252 | StringView m_text; |
253 | bool m_isAll8BitData; |
254 | }; |
255 | |
256 | inline bool HTMLTreeBuilder::isParsingTemplateContents() const |
257 | { |
258 | return m_tree.openElements().hasTemplateInHTMLScope(); |
259 | } |
260 | |
261 | inline bool HTMLTreeBuilder::isParsingFragmentOrTemplateContents() const |
262 | { |
263 | return isParsingFragment() || isParsingTemplateContents(); |
264 | } |
265 | |
266 | HTMLTreeBuilder::HTMLTreeBuilder(HTMLDocumentParser& parser, HTMLDocument& document, ParserContentPolicy parserContentPolicy, const HTMLParserOptions& options) |
267 | : m_parser(parser) |
268 | , m_options(options) |
269 | , m_tree(document, parserContentPolicy, options.maximumDOMTreeDepth) |
270 | , m_scriptToProcessStartPosition(uninitializedPositionValue1()) |
271 | { |
272 | #if !ASSERT_DISABLED |
273 | m_destructionProhibited = false; |
274 | #endif |
275 | } |
276 | |
277 | HTMLTreeBuilder::HTMLTreeBuilder(HTMLDocumentParser& parser, DocumentFragment& fragment, Element& contextElement, ParserContentPolicy parserContentPolicy, const HTMLParserOptions& options) |
278 | : m_parser(parser) |
279 | , m_options(options) |
280 | , m_fragmentContext(fragment, contextElement) |
281 | , m_tree(fragment, parserContentPolicy, options.maximumDOMTreeDepth) |
282 | , m_scriptToProcessStartPosition(uninitializedPositionValue1()) |
283 | { |
284 | ASSERT(isMainThread()); |
285 | |
286 | // https://html.spec.whatwg.org/multipage/syntax.html#parsing-html-fragments |
287 | // For efficiency, we skip step 5 ("Let root be a new html element with no attributes") and instead use the DocumentFragment as a root node. |
288 | m_tree.openElements().pushRootNode(HTMLStackItem::create(fragment)); |
289 | |
290 | if (contextElement.hasTagName(templateTag)) |
291 | m_templateInsertionModes.append(InsertionMode::TemplateContents); |
292 | |
293 | resetInsertionModeAppropriately(); |
294 | |
295 | m_tree.setForm(is<HTMLFormElement>(contextElement) ? &downcast<HTMLFormElement>(contextElement) : HTMLFormElement::findClosestFormAncestor(contextElement)); |
296 | |
297 | #if !ASSERT_DISABLED |
298 | m_destructionProhibited = false; |
299 | #endif |
300 | } |
301 | |
302 | HTMLTreeBuilder::FragmentParsingContext::FragmentParsingContext() |
303 | { |
304 | } |
305 | |
306 | HTMLTreeBuilder::FragmentParsingContext::FragmentParsingContext(DocumentFragment& fragment, Element& contextElement) |
307 | : m_fragment(&fragment) |
308 | { |
309 | ASSERT(!fragment.hasChildNodes()); |
310 | m_contextElementStackItem = HTMLStackItem::create(contextElement); |
311 | } |
312 | |
313 | inline Element& HTMLTreeBuilder::FragmentParsingContext::contextElement() const |
314 | { |
315 | return contextElementStackItem().element(); |
316 | } |
317 | |
318 | inline HTMLStackItem& HTMLTreeBuilder::FragmentParsingContext::contextElementStackItem() const |
319 | { |
320 | ASSERT(m_fragment); |
321 | return *m_contextElementStackItem; |
322 | } |
323 | |
324 | RefPtr<ScriptElement> HTMLTreeBuilder::takeScriptToProcess(TextPosition& scriptStartPosition) |
325 | { |
326 | ASSERT(!m_destroyed); |
327 | |
328 | if (!m_scriptToProcess) |
329 | return nullptr; |
330 | |
331 | // Unpause ourselves, callers may pause us again when processing the script. |
332 | // The HTML5 spec is written as though scripts are executed inside the tree builder. |
333 | // We pause the parser to exit the tree builder, and then resume before running scripts. |
334 | scriptStartPosition = m_scriptToProcessStartPosition; |
335 | m_scriptToProcessStartPosition = uninitializedPositionValue1(); |
336 | return WTFMove(m_scriptToProcess); |
337 | } |
338 | |
339 | void HTMLTreeBuilder::constructTree(AtomicHTMLToken&& token) |
340 | { |
341 | #if !ASSERT_DISABLED |
342 | ASSERT(!m_destroyed); |
343 | ASSERT(!m_destructionProhibited); |
344 | m_destructionProhibited = true; |
345 | #endif |
346 | |
347 | if (shouldProcessTokenInForeignContent(token)) |
348 | processTokenInForeignContent(WTFMove(token)); |
349 | else |
350 | processToken(WTFMove(token)); |
351 | |
352 | bool inForeignContent = !m_tree.isEmpty() |
353 | && !isInHTMLNamespace(adjustedCurrentStackItem()) |
354 | && !HTMLElementStack::isHTMLIntegrationPoint(m_tree.currentStackItem()) |
355 | && !HTMLElementStack::isMathMLTextIntegrationPoint(m_tree.currentStackItem()); |
356 | |
357 | m_parser.tokenizer().setForceNullCharacterReplacement(m_insertionMode == InsertionMode::Text || inForeignContent); |
358 | m_parser.tokenizer().setShouldAllowCDATA(inForeignContent); |
359 | |
360 | #if !ASSERT_DISABLED |
361 | m_destructionProhibited = false; |
362 | #endif |
363 | |
364 | m_tree.executeQueuedTasks(); |
365 | // The tree builder might have been destroyed as an indirect result of executing the queued tasks. |
366 | } |
367 | |
368 | void HTMLTreeBuilder::processToken(AtomicHTMLToken&& token) |
369 | { |
370 | switch (token.type()) { |
371 | case HTMLToken::Uninitialized: |
372 | ASSERT_NOT_REACHED(); |
373 | break; |
374 | case HTMLToken::DOCTYPE: |
375 | m_shouldSkipLeadingNewline = false; |
376 | processDoctypeToken(WTFMove(token)); |
377 | break; |
378 | case HTMLToken::StartTag: |
379 | m_shouldSkipLeadingNewline = false; |
380 | processStartTag(WTFMove(token)); |
381 | break; |
382 | case HTMLToken::EndTag: |
383 | m_shouldSkipLeadingNewline = false; |
384 | processEndTag(WTFMove(token)); |
385 | break; |
386 | case HTMLToken::Comment: |
387 | m_shouldSkipLeadingNewline = false; |
388 | processComment(WTFMove(token)); |
389 | return; |
390 | case HTMLToken::Character: |
391 | processCharacter(WTFMove(token)); |
392 | break; |
393 | case HTMLToken::EndOfFile: |
394 | m_shouldSkipLeadingNewline = false; |
395 | processEndOfFile(WTFMove(token)); |
396 | break; |
397 | } |
398 | } |
399 | |
400 | void HTMLTreeBuilder::processDoctypeToken(AtomicHTMLToken&& token) |
401 | { |
402 | ASSERT(token.type() == HTMLToken::DOCTYPE); |
403 | if (m_insertionMode == InsertionMode::Initial) { |
404 | m_tree.insertDoctype(WTFMove(token)); |
405 | m_insertionMode = InsertionMode::BeforeHTML; |
406 | return; |
407 | } |
408 | if (m_insertionMode == InsertionMode::InTableText) { |
409 | defaultForInTableText(); |
410 | processDoctypeToken(WTFMove(token)); |
411 | return; |
412 | } |
413 | parseError(token); |
414 | } |
415 | |
416 | void HTMLTreeBuilder::processFakeStartTag(const QualifiedName& tagName, Vector<Attribute>&& attributes) |
417 | { |
418 | // FIXME: We'll need a fancier conversion than just "localName" for SVG/MathML tags. |
419 | AtomicHTMLToken fakeToken(HTMLToken::StartTag, tagName.localName(), WTFMove(attributes)); |
420 | processStartTag(WTFMove(fakeToken)); |
421 | } |
422 | |
423 | void HTMLTreeBuilder::processFakeEndTag(const AtomicString& tagName) |
424 | { |
425 | AtomicHTMLToken fakeToken(HTMLToken::EndTag, tagName); |
426 | processEndTag(WTFMove(fakeToken)); |
427 | } |
428 | |
429 | void HTMLTreeBuilder::processFakeEndTag(const QualifiedName& tagName) |
430 | { |
431 | // FIXME: We'll need a fancier conversion than just "localName" for SVG/MathML tags. |
432 | processFakeEndTag(tagName.localName()); |
433 | } |
434 | |
435 | void HTMLTreeBuilder::processFakeCharacters(const String& characters) |
436 | { |
437 | ASSERT(!characters.isEmpty()); |
438 | ExternalCharacterTokenBuffer buffer(characters); |
439 | processCharacterBuffer(buffer); |
440 | } |
441 | |
442 | void HTMLTreeBuilder::processFakePEndTagIfPInButtonScope() |
443 | { |
444 | if (!m_tree.openElements().inButtonScope(pTag->localName())) |
445 | return; |
446 | AtomicHTMLToken endP(HTMLToken::EndTag, pTag->localName()); |
447 | processEndTag(WTFMove(endP)); |
448 | } |
449 | |
450 | namespace { |
451 | |
452 | bool isLi(const HTMLStackItem& item) |
453 | { |
454 | return item.hasTagName(liTag); |
455 | } |
456 | |
457 | bool isDdOrDt(const HTMLStackItem& item) |
458 | { |
459 | return item.hasTagName(ddTag) || item.hasTagName(dtTag); |
460 | } |
461 | |
462 | } |
463 | |
464 | template <bool shouldClose(const HTMLStackItem&)> void HTMLTreeBuilder::processCloseWhenNestedTag(AtomicHTMLToken&& token) |
465 | { |
466 | m_framesetOk = false; |
467 | for (auto* nodeRecord = &m_tree.openElements().topRecord(); ; nodeRecord = nodeRecord->next()) { |
468 | HTMLStackItem& item = nodeRecord->stackItem(); |
469 | if (shouldClose(item)) { |
470 | ASSERT(item.isElement()); |
471 | processFakeEndTag(item.localName()); |
472 | break; |
473 | } |
474 | if (isSpecialNode(item) && !item.hasTagName(addressTag) && !item.hasTagName(divTag) && !item.hasTagName(pTag)) |
475 | break; |
476 | } |
477 | processFakePEndTagIfPInButtonScope(); |
478 | m_tree.insertHTMLElement(WTFMove(token)); |
479 | } |
480 | |
481 | template <typename TableQualifiedName> static HashMap<AtomicString, QualifiedName> createCaseMap(const TableQualifiedName* const names[], unsigned length) |
482 | { |
483 | HashMap<AtomicString, QualifiedName> map; |
484 | for (unsigned i = 0; i < length; ++i) { |
485 | const QualifiedName& name = *names[i]; |
486 | const AtomicString& localName = name.localName(); |
487 | AtomicString loweredLocalName = localName.convertToASCIILowercase(); |
488 | if (loweredLocalName != localName) |
489 | map.add(loweredLocalName, name); |
490 | } |
491 | return map; |
492 | } |
493 | |
494 | static void adjustSVGTagNameCase(AtomicHTMLToken& token) |
495 | { |
496 | static NeverDestroyed<HashMap<AtomicString, QualifiedName>> map = createCaseMap(SVGNames::getSVGTags(), SVGNames::SVGTagsCount); |
497 | const QualifiedName& casedName = map.get().get(token.name()); |
498 | if (casedName.localName().isNull()) |
499 | return; |
500 | token.setName(casedName.localName()); |
501 | } |
502 | |
503 | static inline void adjustAttributes(HashMap<AtomicString, QualifiedName>& map, AtomicHTMLToken& token) |
504 | { |
505 | for (auto& attribute : token.attributes()) { |
506 | const QualifiedName& casedName = map.get(attribute.localName()); |
507 | if (!casedName.localName().isNull()) |
508 | attribute.parserSetName(casedName); |
509 | } |
510 | } |
511 | |
512 | template<const QualifiedName* const* attributesTable(), unsigned attributesTableLength> static void adjustAttributes(AtomicHTMLToken& token) |
513 | { |
514 | static NeverDestroyed<HashMap<AtomicString, QualifiedName>> map = createCaseMap(attributesTable(), attributesTableLength); |
515 | adjustAttributes(map, token); |
516 | } |
517 | |
518 | static inline void adjustSVGAttributes(AtomicHTMLToken& token) |
519 | { |
520 | adjustAttributes<SVGNames::getSVGAttrs, SVGNames::SVGAttrsCount>(token); |
521 | } |
522 | |
523 | static inline void adjustMathMLAttributes(AtomicHTMLToken& token) |
524 | { |
525 | adjustAttributes<MathMLNames::getMathMLAttrs, MathMLNames::MathMLAttrsCount>(token); |
526 | } |
527 | |
528 | static void addNamesWithPrefix(HashMap<AtomicString, QualifiedName>& map, const AtomicString& prefix, const QualifiedName* const names[], unsigned length) |
529 | { |
530 | for (unsigned i = 0; i < length; ++i) { |
531 | const QualifiedName& name = *names[i]; |
532 | const AtomicString& localName = name.localName(); |
533 | map.add(prefix + ':' + localName, QualifiedName(prefix, localName, name.namespaceURI())); |
534 | } |
535 | } |
536 | |
537 | static HashMap<AtomicString, QualifiedName> createForeignAttributesMap() |
538 | { |
539 | HashMap<AtomicString, QualifiedName> map; |
540 | |
541 | AtomicString xlinkName("xlink" , AtomicString::ConstructFromLiteral); |
542 | addNamesWithPrefix(map, xlinkName, XLinkNames::getXLinkAttrs(), XLinkNames::XLinkAttrsCount); |
543 | addNamesWithPrefix(map, xmlAtom(), XMLNames::getXMLAttrs(), XMLNames::XMLAttrsCount); |
544 | |
545 | map.add(WTF::xmlnsAtom(), XMLNSNames::xmlnsAttr); |
546 | map.add("xmlns:xlink" , QualifiedName(xmlnsAtom(), xlinkName, XMLNSNames::xmlnsNamespaceURI)); |
547 | |
548 | return map; |
549 | } |
550 | |
551 | static void adjustForeignAttributes(AtomicHTMLToken& token) |
552 | { |
553 | static NeverDestroyed<HashMap<AtomicString, QualifiedName>> map = createForeignAttributesMap(); |
554 | adjustAttributes(map, token); |
555 | } |
556 | |
557 | void HTMLTreeBuilder::processStartTagForInBody(AtomicHTMLToken&& token) |
558 | { |
559 | ASSERT(token.type() == HTMLToken::StartTag); |
560 | if (token.name() == htmlTag) { |
561 | processHtmlStartTagForInBody(WTFMove(token)); |
562 | return; |
563 | } |
564 | if (token.name() == baseTag |
565 | || token.name() == basefontTag |
566 | || token.name() == bgsoundTag |
567 | || token.name() == commandTag |
568 | || token.name() == linkTag |
569 | || token.name() == metaTag |
570 | || token.name() == noframesTag |
571 | || token.name() == scriptTag |
572 | || token.name() == styleTag |
573 | || token.name() == titleTag) { |
574 | bool didProcess = processStartTagForInHead(WTFMove(token)); |
575 | ASSERT_UNUSED(didProcess, didProcess); |
576 | return; |
577 | } |
578 | if (token.name() == bodyTag) { |
579 | parseError(token); |
580 | bool fragmentOrTemplateCase = !m_tree.openElements().secondElementIsHTMLBodyElement() || m_tree.openElements().hasOnlyOneElement() |
581 | || m_tree.openElements().hasTemplateInHTMLScope(); |
582 | if (fragmentOrTemplateCase) { |
583 | ASSERT(isParsingFragmentOrTemplateContents()); |
584 | return; |
585 | } |
586 | m_framesetOk = false; |
587 | m_tree.insertHTMLBodyStartTagInBody(WTFMove(token)); |
588 | return; |
589 | } |
590 | if (token.name() == framesetTag) { |
591 | parseError(token); |
592 | if (!m_tree.openElements().secondElementIsHTMLBodyElement() || m_tree.openElements().hasOnlyOneElement()) { |
593 | ASSERT(isParsingFragmentOrTemplateContents()); |
594 | return; |
595 | } |
596 | if (!m_framesetOk) |
597 | return; |
598 | m_tree.openElements().bodyElement().remove(); |
599 | m_tree.openElements().popUntil(m_tree.openElements().bodyElement()); |
600 | m_tree.openElements().popHTMLBodyElement(); |
601 | // Note: in the fragment case the root is a DocumentFragment instead of a proper html element which is a quirk / optimization in WebKit. |
602 | ASSERT(!isParsingFragment() || is<DocumentFragment>(m_tree.openElements().topNode())); |
603 | ASSERT(isParsingFragment() || &m_tree.openElements().top() == &m_tree.openElements().htmlElement()); |
604 | m_tree.insertHTMLElement(WTFMove(token)); |
605 | m_insertionMode = InsertionMode::InFrameset; |
606 | return; |
607 | } |
608 | if (token.name() == addressTag |
609 | || token.name() == articleTag |
610 | || token.name() == asideTag |
611 | || token.name() == blockquoteTag |
612 | || token.name() == centerTag |
613 | || token.name() == detailsTag |
614 | || token.name() == dirTag |
615 | || token.name() == divTag |
616 | || token.name() == dlTag |
617 | || token.name() == fieldsetTag |
618 | || token.name() == figcaptionTag |
619 | || token.name() == figureTag |
620 | || token.name() == footerTag |
621 | || token.name() == headerTag |
622 | || token.name() == hgroupTag |
623 | || token.name() == mainTag |
624 | || token.name() == menuTag |
625 | || token.name() == navTag |
626 | || token.name() == olTag |
627 | || token.name() == pTag |
628 | || token.name() == sectionTag |
629 | || token.name() == summaryTag |
630 | || token.name() == ulTag) { |
631 | processFakePEndTagIfPInButtonScope(); |
632 | m_tree.insertHTMLElement(WTFMove(token)); |
633 | return; |
634 | } |
635 | if (isNumberedHeaderTag(token.name())) { |
636 | processFakePEndTagIfPInButtonScope(); |
637 | if (isNumberedHeaderElement(m_tree.currentStackItem())) { |
638 | parseError(token); |
639 | m_tree.openElements().pop(); |
640 | } |
641 | m_tree.insertHTMLElement(WTFMove(token)); |
642 | return; |
643 | } |
644 | if (token.name() == preTag || token.name() == listingTag) { |
645 | processFakePEndTagIfPInButtonScope(); |
646 | m_tree.insertHTMLElement(WTFMove(token)); |
647 | m_shouldSkipLeadingNewline = true; |
648 | m_framesetOk = false; |
649 | return; |
650 | } |
651 | if (token.name() == formTag) { |
652 | if (m_tree.form() && !isParsingTemplateContents()) { |
653 | parseError(token); |
654 | return; |
655 | } |
656 | processFakePEndTagIfPInButtonScope(); |
657 | m_tree.insertHTMLFormElement(WTFMove(token)); |
658 | return; |
659 | } |
660 | if (token.name() == liTag) { |
661 | processCloseWhenNestedTag<isLi>(WTFMove(token)); |
662 | return; |
663 | } |
664 | if (token.name() == ddTag || token.name() == dtTag) { |
665 | processCloseWhenNestedTag<isDdOrDt>(WTFMove(token)); |
666 | return; |
667 | } |
668 | if (token.name() == plaintextTag) { |
669 | processFakePEndTagIfPInButtonScope(); |
670 | m_tree.insertHTMLElement(WTFMove(token)); |
671 | m_parser.tokenizer().setPLAINTEXTState(); |
672 | return; |
673 | } |
674 | if (token.name() == buttonTag) { |
675 | if (m_tree.openElements().inScope(buttonTag)) { |
676 | parseError(token); |
677 | processFakeEndTag(buttonTag); |
678 | processStartTag(WTFMove(token)); // FIXME: Could we just fall through here? |
679 | return; |
680 | } |
681 | m_tree.reconstructTheActiveFormattingElements(); |
682 | m_tree.insertHTMLElement(WTFMove(token)); |
683 | m_framesetOk = false; |
684 | return; |
685 | } |
686 | if (token.name() == aTag) { |
687 | RefPtr<Element> activeATag = m_tree.activeFormattingElements().closestElementInScopeWithName(aTag->localName()); |
688 | if (activeATag) { |
689 | parseError(token); |
690 | processFakeEndTag(aTag); |
691 | m_tree.activeFormattingElements().remove(*activeATag); |
692 | if (m_tree.openElements().contains(*activeATag)) |
693 | m_tree.openElements().remove(*activeATag); |
694 | } |
695 | m_tree.reconstructTheActiveFormattingElements(); |
696 | m_tree.insertFormattingElement(WTFMove(token)); |
697 | return; |
698 | } |
699 | if (isNonAnchorNonNobrFormattingTag(token.name())) { |
700 | m_tree.reconstructTheActiveFormattingElements(); |
701 | m_tree.insertFormattingElement(WTFMove(token)); |
702 | return; |
703 | } |
704 | if (token.name() == nobrTag) { |
705 | m_tree.reconstructTheActiveFormattingElements(); |
706 | if (m_tree.openElements().inScope(nobrTag)) { |
707 | parseError(token); |
708 | processFakeEndTag(nobrTag); |
709 | m_tree.reconstructTheActiveFormattingElements(); |
710 | } |
711 | m_tree.insertFormattingElement(WTFMove(token)); |
712 | return; |
713 | } |
714 | if (token.name() == appletTag || token.name() == embedTag || token.name() == objectTag) { |
715 | if (!pluginContentIsAllowed(m_tree.parserContentPolicy())) |
716 | return; |
717 | } |
718 | if (token.name() == appletTag || token.name() == marqueeTag || token.name() == objectTag) { |
719 | m_tree.reconstructTheActiveFormattingElements(); |
720 | m_tree.insertHTMLElement(WTFMove(token)); |
721 | m_tree.activeFormattingElements().appendMarker(); |
722 | m_framesetOk = false; |
723 | return; |
724 | } |
725 | if (token.name() == tableTag) { |
726 | if (!m_tree.inQuirksMode() && m_tree.openElements().inButtonScope(pTag)) |
727 | processFakeEndTag(pTag); |
728 | m_tree.insertHTMLElement(WTFMove(token)); |
729 | m_framesetOk = false; |
730 | m_insertionMode = InsertionMode::InTable; |
731 | return; |
732 | } |
733 | if (token.name() == imageTag) { |
734 | parseError(token); |
735 | // Apparently we're not supposed to ask. |
736 | token.setName(imgTag->localName()); |
737 | // Note the fall through to the imgTag handling below! |
738 | } |
739 | if (token.name() == areaTag |
740 | || token.name() == brTag |
741 | || token.name() == embedTag |
742 | || token.name() == imgTag |
743 | || token.name() == keygenTag |
744 | || token.name() == wbrTag) { |
745 | m_tree.reconstructTheActiveFormattingElements(); |
746 | m_tree.insertSelfClosingHTMLElement(WTFMove(token)); |
747 | m_framesetOk = false; |
748 | return; |
749 | } |
750 | if (token.name() == inputTag) { |
751 | m_tree.reconstructTheActiveFormattingElements(); |
752 | auto* typeAttribute = findAttribute(token.attributes(), typeAttr); |
753 | bool shouldClearFramesetOK = !typeAttribute || !equalLettersIgnoringASCIICase(typeAttribute->value(), "hidden" ); |
754 | m_tree.insertSelfClosingHTMLElement(WTFMove(token)); |
755 | if (shouldClearFramesetOK) |
756 | m_framesetOk = false; |
757 | return; |
758 | } |
759 | if (token.name() == paramTag || token.name() == sourceTag || token.name() == trackTag) { |
760 | m_tree.insertSelfClosingHTMLElement(WTFMove(token)); |
761 | return; |
762 | } |
763 | if (token.name() == hrTag) { |
764 | processFakePEndTagIfPInButtonScope(); |
765 | m_tree.insertSelfClosingHTMLElement(WTFMove(token)); |
766 | m_framesetOk = false; |
767 | return; |
768 | } |
769 | if (token.name() == textareaTag) { |
770 | m_tree.insertHTMLElement(WTFMove(token)); |
771 | m_shouldSkipLeadingNewline = true; |
772 | m_parser.tokenizer().setRCDATAState(); |
773 | m_originalInsertionMode = m_insertionMode; |
774 | m_framesetOk = false; |
775 | m_insertionMode = InsertionMode::Text; |
776 | return; |
777 | } |
778 | if (token.name() == xmpTag) { |
779 | processFakePEndTagIfPInButtonScope(); |
780 | m_tree.reconstructTheActiveFormattingElements(); |
781 | m_framesetOk = false; |
782 | processGenericRawTextStartTag(WTFMove(token)); |
783 | return; |
784 | } |
785 | if (token.name() == iframeTag) { |
786 | m_framesetOk = false; |
787 | processGenericRawTextStartTag(WTFMove(token)); |
788 | return; |
789 | } |
790 | if (token.name() == noembedTag) { |
791 | processGenericRawTextStartTag(WTFMove(token)); |
792 | return; |
793 | } |
794 | if (token.name() == noscriptTag && m_options.scriptEnabled) { |
795 | processGenericRawTextStartTag(WTFMove(token)); |
796 | return; |
797 | } |
798 | if (token.name() == selectTag) { |
799 | m_tree.reconstructTheActiveFormattingElements(); |
800 | m_tree.insertHTMLElement(WTFMove(token)); |
801 | m_framesetOk = false; |
802 | if (m_insertionMode == InsertionMode::InTable |
803 | || m_insertionMode == InsertionMode::InCaption |
804 | || m_insertionMode == InsertionMode::InColumnGroup |
805 | || m_insertionMode == InsertionMode::InTableBody |
806 | || m_insertionMode == InsertionMode::InRow |
807 | || m_insertionMode == InsertionMode::InCell) |
808 | m_insertionMode = InsertionMode::InSelectInTable; |
809 | else |
810 | m_insertionMode = InsertionMode::InSelect; |
811 | return; |
812 | } |
813 | if (token.name() == optgroupTag || token.name() == optionTag) { |
814 | if (is<HTMLOptionElement>(m_tree.currentStackItem().node())) { |
815 | AtomicHTMLToken endOption(HTMLToken::EndTag, optionTag->localName()); |
816 | processEndTag(WTFMove(endOption)); |
817 | } |
818 | m_tree.reconstructTheActiveFormattingElements(); |
819 | m_tree.insertHTMLElement(WTFMove(token)); |
820 | return; |
821 | } |
822 | if (token.name() == rbTag || token.name() == rtcTag) { |
823 | if (m_tree.openElements().inScope(rubyTag->localName())) { |
824 | m_tree.generateImpliedEndTags(); |
825 | if (!m_tree.currentStackItem().hasTagName(rubyTag)) |
826 | parseError(token); |
827 | } |
828 | m_tree.insertHTMLElement(WTFMove(token)); |
829 | return; |
830 | } |
831 | if (token.name() == rtTag || token.name() == rpTag) { |
832 | if (m_tree.openElements().inScope(rubyTag->localName())) { |
833 | m_tree.generateImpliedEndTagsWithExclusion(rtcTag->localName()); |
834 | if (!m_tree.currentStackItem().hasTagName(rubyTag) && !m_tree.currentStackItem().hasTagName(rtcTag)) |
835 | parseError(token); |
836 | } |
837 | m_tree.insertHTMLElement(WTFMove(token)); |
838 | return; |
839 | } |
840 | if (token.name() == MathMLNames::mathTag->localName()) { |
841 | m_tree.reconstructTheActiveFormattingElements(); |
842 | adjustMathMLAttributes(token); |
843 | adjustForeignAttributes(token); |
844 | m_tree.insertForeignElement(WTFMove(token), MathMLNames::mathmlNamespaceURI); |
845 | return; |
846 | } |
847 | if (token.name() == SVGNames::svgTag->localName()) { |
848 | m_tree.reconstructTheActiveFormattingElements(); |
849 | adjustSVGAttributes(token); |
850 | adjustForeignAttributes(token); |
851 | m_tree.insertForeignElement(WTFMove(token), SVGNames::svgNamespaceURI); |
852 | return; |
853 | } |
854 | if (isCaptionColOrColgroupTag(token.name()) |
855 | || token.name() == frameTag |
856 | || token.name() == headTag |
857 | || isTableBodyContextTag(token.name()) |
858 | || isTableCellContextTag(token.name()) |
859 | || token.name() == trTag) { |
860 | parseError(token); |
861 | return; |
862 | } |
863 | if (token.name() == templateTag) { |
864 | m_framesetOk = false; |
865 | processTemplateStartTag(WTFMove(token)); |
866 | return; |
867 | } |
868 | m_tree.reconstructTheActiveFormattingElements(); |
869 | insertGenericHTMLElement(WTFMove(token)); |
870 | } |
871 | |
872 | inline void HTMLTreeBuilder::insertGenericHTMLElement(AtomicHTMLToken&& token) |
873 | { |
874 | m_customElementToConstruct = m_tree.insertHTMLElementOrFindCustomElementInterface(WTFMove(token)); |
875 | } |
876 | |
877 | void HTMLTreeBuilder::didCreateCustomOrFallbackElement(Ref<Element>&& element, CustomElementConstructionData& data) |
878 | { |
879 | m_tree.insertCustomElement(WTFMove(element), data.name, WTFMove(data.attributes)); |
880 | } |
881 | |
882 | void HTMLTreeBuilder::processTemplateStartTag(AtomicHTMLToken&& token) |
883 | { |
884 | m_tree.activeFormattingElements().appendMarker(); |
885 | m_tree.insertHTMLElement(WTFMove(token)); |
886 | m_templateInsertionModes.append(InsertionMode::TemplateContents); |
887 | m_insertionMode = InsertionMode::TemplateContents; |
888 | } |
889 | |
890 | bool HTMLTreeBuilder::processTemplateEndTag(AtomicHTMLToken&& token) |
891 | { |
892 | ASSERT(token.name() == templateTag->localName()); |
893 | if (!m_tree.openElements().hasTemplateInHTMLScope()) { |
894 | ASSERT(m_templateInsertionModes.isEmpty() || (m_templateInsertionModes.size() == 1 && m_fragmentContext.contextElement().hasTagName(templateTag))); |
895 | parseError(token); |
896 | return false; |
897 | } |
898 | m_tree.generateImpliedEndTags(); |
899 | if (!m_tree.currentStackItem().hasTagName(templateTag)) |
900 | parseError(token); |
901 | m_tree.openElements().popUntilPopped(templateTag); |
902 | m_tree.activeFormattingElements().clearToLastMarker(); |
903 | m_templateInsertionModes.removeLast(); |
904 | resetInsertionModeAppropriately(); |
905 | return true; |
906 | } |
907 | |
908 | bool HTMLTreeBuilder::processEndOfFileForInTemplateContents(AtomicHTMLToken&& token) |
909 | { |
910 | AtomicHTMLToken endTemplate(HTMLToken::EndTag, templateTag->localName()); |
911 | if (!processTemplateEndTag(WTFMove(endTemplate))) |
912 | return false; |
913 | |
914 | processEndOfFile(WTFMove(token)); |
915 | return true; |
916 | } |
917 | |
918 | bool HTMLTreeBuilder::processColgroupEndTagForInColumnGroup() |
919 | { |
920 | bool ignoreFakeEndTag = m_tree.currentIsRootNode() || m_tree.currentNode().hasTagName(templateTag); |
921 | |
922 | if (ignoreFakeEndTag) { |
923 | ASSERT(isParsingFragmentOrTemplateContents()); |
924 | // FIXME: parse error |
925 | return false; |
926 | } |
927 | m_tree.openElements().pop(); |
928 | m_insertionMode = InsertionMode::InTable; |
929 | return true; |
930 | } |
931 | |
932 | // http://www.whatwg.org/specs/web-apps/current-work/multipage/tokenization.html#close-the-cell |
933 | void HTMLTreeBuilder::closeTheCell() |
934 | { |
935 | ASSERT(m_insertionMode == InsertionMode::InCell); |
936 | if (m_tree.openElements().inTableScope(tdTag)) { |
937 | ASSERT(!m_tree.openElements().inTableScope(thTag)); |
938 | processFakeEndTag(tdTag); |
939 | return; |
940 | } |
941 | ASSERT(m_tree.openElements().inTableScope(thTag)); |
942 | processFakeEndTag(thTag); |
943 | ASSERT(m_insertionMode == InsertionMode::InRow); |
944 | } |
945 | |
946 | void HTMLTreeBuilder::processStartTagForInTable(AtomicHTMLToken&& token) |
947 | { |
948 | ASSERT(token.type() == HTMLToken::StartTag); |
949 | if (token.name() == captionTag) { |
950 | m_tree.openElements().popUntilTableScopeMarker(); |
951 | m_tree.activeFormattingElements().appendMarker(); |
952 | m_tree.insertHTMLElement(WTFMove(token)); |
953 | m_insertionMode = InsertionMode::InCaption; |
954 | return; |
955 | } |
956 | if (token.name() == colgroupTag) { |
957 | m_tree.openElements().popUntilTableScopeMarker(); |
958 | m_tree.insertHTMLElement(WTFMove(token)); |
959 | m_insertionMode = InsertionMode::InColumnGroup; |
960 | return; |
961 | } |
962 | if (token.name() == colTag) { |
963 | processFakeStartTag(colgroupTag); |
964 | ASSERT(m_insertionMode == InsertionMode::InColumnGroup); |
965 | processStartTag(WTFMove(token)); |
966 | return; |
967 | } |
968 | if (isTableBodyContextTag(token.name())) { |
969 | m_tree.openElements().popUntilTableScopeMarker(); |
970 | m_tree.insertHTMLElement(WTFMove(token)); |
971 | m_insertionMode = InsertionMode::InTableBody; |
972 | return; |
973 | } |
974 | if (isTableCellContextTag(token.name()) || token.name() == trTag) { |
975 | processFakeStartTag(tbodyTag); |
976 | ASSERT(m_insertionMode == InsertionMode::InTableBody); |
977 | processStartTag(WTFMove(token)); |
978 | return; |
979 | } |
980 | if (token.name() == tableTag) { |
981 | parseError(token); |
982 | if (!processTableEndTagForInTable()) { |
983 | ASSERT(isParsingFragmentOrTemplateContents()); |
984 | return; |
985 | } |
986 | processStartTag(WTFMove(token)); |
987 | return; |
988 | } |
989 | if (token.name() == styleTag || token.name() == scriptTag) { |
990 | processStartTagForInHead(WTFMove(token)); |
991 | return; |
992 | } |
993 | if (token.name() == inputTag) { |
994 | auto* typeAttribute = findAttribute(token.attributes(), typeAttr); |
995 | if (typeAttribute && equalLettersIgnoringASCIICase(typeAttribute->value(), "hidden" )) { |
996 | parseError(token); |
997 | m_tree.insertSelfClosingHTMLElement(WTFMove(token)); |
998 | return; |
999 | } |
1000 | // Fall through to "anything else" case. |
1001 | } |
1002 | if (token.name() == formTag) { |
1003 | parseError(token); |
1004 | if (m_tree.form() && !isParsingTemplateContents()) |
1005 | return; |
1006 | m_tree.insertHTMLFormElement(WTFMove(token), true); |
1007 | m_tree.openElements().pop(); |
1008 | return; |
1009 | } |
1010 | if (token.name() == templateTag) { |
1011 | processTemplateStartTag(WTFMove(token)); |
1012 | return; |
1013 | } |
1014 | parseError(token); |
1015 | HTMLConstructionSite::RedirectToFosterParentGuard redirecter(m_tree); |
1016 | processStartTagForInBody(WTFMove(token)); |
1017 | } |
1018 | |
1019 | void HTMLTreeBuilder::processStartTag(AtomicHTMLToken&& token) |
1020 | { |
1021 | ASSERT(token.type() == HTMLToken::StartTag); |
1022 | switch (m_insertionMode) { |
1023 | case InsertionMode::Initial: |
1024 | defaultForInitial(); |
1025 | ASSERT(m_insertionMode == InsertionMode::BeforeHTML); |
1026 | FALLTHROUGH; |
1027 | case InsertionMode::BeforeHTML: |
1028 | if (token.name() == htmlTag) { |
1029 | m_tree.insertHTMLHtmlStartTagBeforeHTML(WTFMove(token)); |
1030 | m_insertionMode = InsertionMode::BeforeHead; |
1031 | return; |
1032 | } |
1033 | defaultForBeforeHTML(); |
1034 | ASSERT(m_insertionMode == InsertionMode::BeforeHead); |
1035 | FALLTHROUGH; |
1036 | case InsertionMode::BeforeHead: |
1037 | if (token.name() == htmlTag) { |
1038 | processHtmlStartTagForInBody(WTFMove(token)); |
1039 | return; |
1040 | } |
1041 | if (token.name() == headTag) { |
1042 | m_tree.insertHTMLHeadElement(WTFMove(token)); |
1043 | m_insertionMode = InsertionMode::InHead; |
1044 | return; |
1045 | } |
1046 | defaultForBeforeHead(); |
1047 | ASSERT(m_insertionMode == InsertionMode::InHead); |
1048 | FALLTHROUGH; |
1049 | case InsertionMode::InHead: |
1050 | if (processStartTagForInHead(WTFMove(token))) |
1051 | return; |
1052 | defaultForInHead(); |
1053 | ASSERT(m_insertionMode == InsertionMode::AfterHead); |
1054 | FALLTHROUGH; |
1055 | case InsertionMode::AfterHead: |
1056 | if (token.name() == htmlTag) { |
1057 | processHtmlStartTagForInBody(WTFMove(token)); |
1058 | return; |
1059 | } |
1060 | if (token.name() == bodyTag) { |
1061 | m_framesetOk = false; |
1062 | m_tree.insertHTMLBodyElement(WTFMove(token)); |
1063 | m_insertionMode = InsertionMode::InBody; |
1064 | return; |
1065 | } |
1066 | if (token.name() == framesetTag) { |
1067 | m_tree.insertHTMLElement(WTFMove(token)); |
1068 | m_insertionMode = InsertionMode::InFrameset; |
1069 | return; |
1070 | } |
1071 | if (token.name() == baseTag |
1072 | || token.name() == basefontTag |
1073 | || token.name() == bgsoundTag |
1074 | || token.name() == linkTag |
1075 | || token.name() == metaTag |
1076 | || token.name() == noframesTag |
1077 | || token.name() == scriptTag |
1078 | || token.name() == styleTag |
1079 | || token.name() == templateTag |
1080 | || token.name() == titleTag) { |
1081 | parseError(token); |
1082 | ASSERT(m_tree.headStackItem()); |
1083 | m_tree.openElements().pushHTMLHeadElement(*m_tree.headStackItem()); |
1084 | processStartTagForInHead(WTFMove(token)); |
1085 | m_tree.openElements().removeHTMLHeadElement(m_tree.head()); |
1086 | return; |
1087 | } |
1088 | if (token.name() == headTag) { |
1089 | parseError(token); |
1090 | return; |
1091 | } |
1092 | defaultForAfterHead(); |
1093 | ASSERT(m_insertionMode == InsertionMode::InBody); |
1094 | FALLTHROUGH; |
1095 | case InsertionMode::InBody: |
1096 | processStartTagForInBody(WTFMove(token)); |
1097 | break; |
1098 | case InsertionMode::InTable: |
1099 | processStartTagForInTable(WTFMove(token)); |
1100 | break; |
1101 | case InsertionMode::InCaption: |
1102 | if (isCaptionColOrColgroupTag(token.name()) |
1103 | || isTableBodyContextTag(token.name()) |
1104 | || isTableCellContextTag(token.name()) |
1105 | || token.name() == trTag) { |
1106 | parseError(token); |
1107 | if (!processCaptionEndTagForInCaption()) { |
1108 | ASSERT(isParsingFragment()); |
1109 | return; |
1110 | } |
1111 | processStartTag(WTFMove(token)); |
1112 | return; |
1113 | } |
1114 | processStartTagForInBody(WTFMove(token)); |
1115 | break; |
1116 | case InsertionMode::InColumnGroup: |
1117 | if (token.name() == htmlTag) { |
1118 | processHtmlStartTagForInBody(WTFMove(token)); |
1119 | return; |
1120 | } |
1121 | if (token.name() == colTag) { |
1122 | m_tree.insertSelfClosingHTMLElement(WTFMove(token)); |
1123 | return; |
1124 | } |
1125 | if (token.name() == templateTag) { |
1126 | processTemplateStartTag(WTFMove(token)); |
1127 | return; |
1128 | } |
1129 | if (!processColgroupEndTagForInColumnGroup()) { |
1130 | ASSERT(isParsingFragmentOrTemplateContents()); |
1131 | return; |
1132 | } |
1133 | processStartTag(WTFMove(token)); |
1134 | break; |
1135 | case InsertionMode::InTableBody: |
1136 | if (token.name() == trTag) { |
1137 | m_tree.openElements().popUntilTableBodyScopeMarker(); // How is there ever anything to pop? |
1138 | m_tree.insertHTMLElement(WTFMove(token)); |
1139 | m_insertionMode = InsertionMode::InRow; |
1140 | return; |
1141 | } |
1142 | if (isTableCellContextTag(token.name())) { |
1143 | parseError(token); |
1144 | processFakeStartTag(trTag); |
1145 | ASSERT(m_insertionMode == InsertionMode::InRow); |
1146 | processStartTag(WTFMove(token)); |
1147 | return; |
1148 | } |
1149 | if (isCaptionColOrColgroupTag(token.name()) || isTableBodyContextTag(token.name())) { |
1150 | // FIXME: This is slow. |
1151 | if (!m_tree.openElements().inTableScope(tbodyTag) && !m_tree.openElements().inTableScope(theadTag) && !m_tree.openElements().inTableScope(tfootTag)) { |
1152 | ASSERT(isParsingFragmentOrTemplateContents()); |
1153 | parseError(token); |
1154 | return; |
1155 | } |
1156 | m_tree.openElements().popUntilTableBodyScopeMarker(); |
1157 | ASSERT(isTableBodyContextTag(m_tree.currentStackItem().localName())); |
1158 | processFakeEndTag(m_tree.currentStackItem().localName()); |
1159 | processStartTag(WTFMove(token)); |
1160 | return; |
1161 | } |
1162 | processStartTagForInTable(WTFMove(token)); |
1163 | break; |
1164 | case InsertionMode::InRow: |
1165 | if (isTableCellContextTag(token.name())) { |
1166 | m_tree.openElements().popUntilTableRowScopeMarker(); |
1167 | m_tree.insertHTMLElement(WTFMove(token)); |
1168 | m_insertionMode = InsertionMode::InCell; |
1169 | m_tree.activeFormattingElements().appendMarker(); |
1170 | return; |
1171 | } |
1172 | if (token.name() == trTag |
1173 | || isCaptionColOrColgroupTag(token.name()) |
1174 | || isTableBodyContextTag(token.name())) { |
1175 | if (!processTrEndTagForInRow()) { |
1176 | ASSERT(isParsingFragmentOrTemplateContents()); |
1177 | return; |
1178 | } |
1179 | ASSERT(m_insertionMode == InsertionMode::InTableBody); |
1180 | processStartTag(WTFMove(token)); |
1181 | return; |
1182 | } |
1183 | processStartTagForInTable(WTFMove(token)); |
1184 | break; |
1185 | case InsertionMode::InCell: |
1186 | if (isCaptionColOrColgroupTag(token.name()) |
1187 | || isTableCellContextTag(token.name()) |
1188 | || token.name() == trTag |
1189 | || isTableBodyContextTag(token.name())) { |
1190 | // FIXME: This could be more efficient. |
1191 | if (!m_tree.openElements().inTableScope(tdTag) && !m_tree.openElements().inTableScope(thTag)) { |
1192 | ASSERT(isParsingFragment()); |
1193 | parseError(token); |
1194 | return; |
1195 | } |
1196 | closeTheCell(); |
1197 | processStartTag(WTFMove(token)); |
1198 | return; |
1199 | } |
1200 | processStartTagForInBody(WTFMove(token)); |
1201 | break; |
1202 | case InsertionMode::AfterBody: |
1203 | case InsertionMode::AfterAfterBody: |
1204 | if (token.name() == htmlTag) { |
1205 | processHtmlStartTagForInBody(WTFMove(token)); |
1206 | return; |
1207 | } |
1208 | m_insertionMode = InsertionMode::InBody; |
1209 | processStartTag(WTFMove(token)); |
1210 | break; |
1211 | case InsertionMode::InHeadNoscript: |
1212 | if (token.name() == htmlTag) { |
1213 | processHtmlStartTagForInBody(WTFMove(token)); |
1214 | return; |
1215 | } |
1216 | if (token.name() == basefontTag |
1217 | || token.name() == bgsoundTag |
1218 | || token.name() == linkTag |
1219 | || token.name() == metaTag |
1220 | || token.name() == noframesTag |
1221 | || token.name() == styleTag) { |
1222 | bool didProcess = processStartTagForInHead(WTFMove(token)); |
1223 | ASSERT_UNUSED(didProcess, didProcess); |
1224 | return; |
1225 | } |
1226 | if (token.name() == htmlTag || token.name() == noscriptTag) { |
1227 | parseError(token); |
1228 | return; |
1229 | } |
1230 | defaultForInHeadNoscript(); |
1231 | processToken(WTFMove(token)); |
1232 | break; |
1233 | case InsertionMode::InFrameset: |
1234 | if (token.name() == htmlTag) { |
1235 | processHtmlStartTagForInBody(WTFMove(token)); |
1236 | return; |
1237 | } |
1238 | if (token.name() == framesetTag) { |
1239 | m_tree.insertHTMLElement(WTFMove(token)); |
1240 | return; |
1241 | } |
1242 | if (token.name() == frameTag) { |
1243 | m_tree.insertSelfClosingHTMLElement(WTFMove(token)); |
1244 | return; |
1245 | } |
1246 | if (token.name() == noframesTag) { |
1247 | processStartTagForInHead(WTFMove(token)); |
1248 | return; |
1249 | } |
1250 | parseError(token); |
1251 | break; |
1252 | case InsertionMode::AfterFrameset: |
1253 | case InsertionMode::AfterAfterFrameset: |
1254 | if (token.name() == htmlTag) { |
1255 | processHtmlStartTagForInBody(WTFMove(token)); |
1256 | return; |
1257 | } |
1258 | if (token.name() == noframesTag) { |
1259 | processStartTagForInHead(WTFMove(token)); |
1260 | return; |
1261 | } |
1262 | parseError(token); |
1263 | break; |
1264 | case InsertionMode::InSelectInTable: |
1265 | if (token.name() == captionTag |
1266 | || token.name() == tableTag |
1267 | || isTableBodyContextTag(token.name()) |
1268 | || token.name() == trTag |
1269 | || isTableCellContextTag(token.name())) { |
1270 | parseError(token); |
1271 | AtomicHTMLToken endSelect(HTMLToken::EndTag, selectTag->localName()); |
1272 | processEndTag(WTFMove(endSelect)); |
1273 | processStartTag(WTFMove(token)); |
1274 | return; |
1275 | } |
1276 | FALLTHROUGH; |
1277 | case InsertionMode::InSelect: |
1278 | if (token.name() == htmlTag) { |
1279 | processHtmlStartTagForInBody(WTFMove(token)); |
1280 | return; |
1281 | } |
1282 | if (token.name() == optionTag) { |
1283 | if (is<HTMLOptionElement>(m_tree.currentStackItem().node())) { |
1284 | AtomicHTMLToken endOption(HTMLToken::EndTag, optionTag->localName()); |
1285 | processEndTag(WTFMove(endOption)); |
1286 | } |
1287 | m_tree.insertHTMLElement(WTFMove(token)); |
1288 | return; |
1289 | } |
1290 | if (token.name() == optgroupTag) { |
1291 | if (is<HTMLOptionElement>(m_tree.currentStackItem().node())) { |
1292 | AtomicHTMLToken endOption(HTMLToken::EndTag, optionTag->localName()); |
1293 | processEndTag(WTFMove(endOption)); |
1294 | } |
1295 | if (is<HTMLOptGroupElement>(m_tree.currentStackItem().node())) { |
1296 | AtomicHTMLToken endOptgroup(HTMLToken::EndTag, optgroupTag->localName()); |
1297 | processEndTag(WTFMove(endOptgroup)); |
1298 | } |
1299 | m_tree.insertHTMLElement(WTFMove(token)); |
1300 | return; |
1301 | } |
1302 | if (token.name() == selectTag) { |
1303 | parseError(token); |
1304 | AtomicHTMLToken endSelect(HTMLToken::EndTag, selectTag->localName()); |
1305 | processEndTag(WTFMove(endSelect)); |
1306 | return; |
1307 | } |
1308 | if (token.name() == inputTag || token.name() == keygenTag || token.name() == textareaTag) { |
1309 | parseError(token); |
1310 | if (!m_tree.openElements().inSelectScope(selectTag)) { |
1311 | ASSERT(isParsingFragment()); |
1312 | return; |
1313 | } |
1314 | AtomicHTMLToken endSelect(HTMLToken::EndTag, selectTag->localName()); |
1315 | processEndTag(WTFMove(endSelect)); |
1316 | processStartTag(WTFMove(token)); |
1317 | return; |
1318 | } |
1319 | if (token.name() == scriptTag) { |
1320 | bool didProcess = processStartTagForInHead(WTFMove(token)); |
1321 | ASSERT_UNUSED(didProcess, didProcess); |
1322 | return; |
1323 | } |
1324 | if (token.name() == templateTag) { |
1325 | processTemplateStartTag(WTFMove(token)); |
1326 | return; |
1327 | } |
1328 | break; |
1329 | case InsertionMode::InTableText: |
1330 | defaultForInTableText(); |
1331 | processStartTag(WTFMove(token)); |
1332 | break; |
1333 | case InsertionMode::Text: |
1334 | ASSERT_NOT_REACHED(); |
1335 | break; |
1336 | case InsertionMode::TemplateContents: |
1337 | if (token.name() == templateTag) { |
1338 | processTemplateStartTag(WTFMove(token)); |
1339 | return; |
1340 | } |
1341 | |
1342 | if (token.name() == linkTag |
1343 | || token.name() == scriptTag |
1344 | || token.name() == styleTag |
1345 | || token.name() == metaTag) { |
1346 | processStartTagForInHead(WTFMove(token)); |
1347 | return; |
1348 | } |
1349 | |
1350 | InsertionMode insertionMode = InsertionMode::TemplateContents; |
1351 | if (token.name() == colTag) |
1352 | insertionMode = InsertionMode::InColumnGroup; |
1353 | else if (isCaptionColOrColgroupTag(token.name()) || isTableBodyContextTag(token.name())) |
1354 | insertionMode = InsertionMode::InTable; |
1355 | else if (token.name() == trTag) |
1356 | insertionMode = InsertionMode::InTableBody; |
1357 | else if (isTableCellContextTag(token.name())) |
1358 | insertionMode = InsertionMode::InRow; |
1359 | else |
1360 | insertionMode = InsertionMode::InBody; |
1361 | |
1362 | ASSERT(insertionMode != InsertionMode::TemplateContents); |
1363 | ASSERT(m_templateInsertionModes.last() == InsertionMode::TemplateContents); |
1364 | m_templateInsertionModes.last() = insertionMode; |
1365 | m_insertionMode = insertionMode; |
1366 | |
1367 | processStartTag(WTFMove(token)); |
1368 | break; |
1369 | } |
1370 | } |
1371 | |
1372 | void HTMLTreeBuilder::processHtmlStartTagForInBody(AtomicHTMLToken&& token) |
1373 | { |
1374 | parseError(token); |
1375 | if (m_tree.openElements().hasTemplateInHTMLScope()) { |
1376 | ASSERT(isParsingTemplateContents()); |
1377 | return; |
1378 | } |
1379 | m_tree.insertHTMLHtmlStartTagInBody(WTFMove(token)); |
1380 | } |
1381 | |
1382 | bool HTMLTreeBuilder::processBodyEndTagForInBody(AtomicHTMLToken&& token) |
1383 | { |
1384 | ASSERT(token.type() == HTMLToken::EndTag); |
1385 | ASSERT(token.name() == bodyTag); |
1386 | if (!m_tree.openElements().inScope(bodyTag->localName())) { |
1387 | parseError(token); |
1388 | return false; |
1389 | } |
1390 | notImplemented(); // Emit a more specific parse error based on stack contents. |
1391 | m_insertionMode = InsertionMode::AfterBody; |
1392 | return true; |
1393 | } |
1394 | |
1395 | void HTMLTreeBuilder::processAnyOtherEndTagForInBody(AtomicHTMLToken&& token) |
1396 | { |
1397 | ASSERT(token.type() == HTMLToken::EndTag); |
1398 | for (auto* record = &m_tree.openElements().topRecord(); ; record = record->next()) { |
1399 | HTMLStackItem& item = record->stackItem(); |
1400 | if (item.matchesHTMLTag(token.name())) { |
1401 | m_tree.generateImpliedEndTagsWithExclusion(token.name()); |
1402 | if (!m_tree.currentStackItem().matchesHTMLTag(token.name())) |
1403 | parseError(token); |
1404 | m_tree.openElements().popUntilPopped(item.element()); |
1405 | return; |
1406 | } |
1407 | if (isSpecialNode(item)) { |
1408 | parseError(token); |
1409 | return; |
1410 | } |
1411 | } |
1412 | } |
1413 | |
1414 | // http://www.whatwg.org/specs/web-apps/current-work/multipage/tokenization.html#parsing-main-inbody |
1415 | void HTMLTreeBuilder::callTheAdoptionAgency(AtomicHTMLToken& token) |
1416 | { |
1417 | // The adoption agency algorithm is N^2. We limit the number of iterations |
1418 | // to stop from hanging the whole browser. This limit is specified in the |
1419 | // adoption agency algorithm: |
1420 | // http://www.whatwg.org/specs/web-apps/current-work/multipage/tree-construction.html#parsing-main-inbody |
1421 | static const int outerIterationLimit = 8; |
1422 | static const int innerIterationLimit = 3; |
1423 | |
1424 | // 1, 2, 3 and 16 are covered by the for() loop. |
1425 | for (int i = 0; i < outerIterationLimit; ++i) { |
1426 | // 4. |
1427 | RefPtr<Element> formattingElement = m_tree.activeFormattingElements().closestElementInScopeWithName(token.name()); |
1428 | // 4.a |
1429 | if (!formattingElement) |
1430 | return processAnyOtherEndTagForInBody(WTFMove(token)); |
1431 | // 4.c |
1432 | if ((m_tree.openElements().contains(*formattingElement)) && !m_tree.openElements().inScope(*formattingElement)) { |
1433 | parseError(token); |
1434 | notImplemented(); // Check the stack of open elements for a more specific parse error. |
1435 | return; |
1436 | } |
1437 | // 4.b |
1438 | auto* formattingElementRecord = m_tree.openElements().find(*formattingElement); |
1439 | if (!formattingElementRecord) { |
1440 | parseError(token); |
1441 | m_tree.activeFormattingElements().remove(*formattingElement); |
1442 | return; |
1443 | } |
1444 | // 4.d |
1445 | if (formattingElement != &m_tree.currentElement()) |
1446 | parseError(token); |
1447 | // 5. |
1448 | auto* furthestBlock = m_tree.openElements().furthestBlockForFormattingElement(*formattingElement); |
1449 | // 6. |
1450 | if (!furthestBlock) { |
1451 | m_tree.openElements().popUntilPopped(*formattingElement); |
1452 | m_tree.activeFormattingElements().remove(*formattingElement); |
1453 | return; |
1454 | } |
1455 | // 7. |
1456 | ASSERT(furthestBlock->isAbove(*formattingElementRecord)); |
1457 | Ref<HTMLStackItem> commonAncestor = formattingElementRecord->next()->stackItem(); |
1458 | // 8. |
1459 | HTMLFormattingElementList::Bookmark bookmark = m_tree.activeFormattingElements().bookmarkFor(*formattingElement); |
1460 | // 9. |
1461 | auto* node = furthestBlock; |
1462 | auto* nextNode = node->next(); |
1463 | auto* lastNode = furthestBlock; |
1464 | // 9.1, 9.2, 9.3 and 9.11 are covered by the for() loop. |
1465 | for (int i = 0; i < innerIterationLimit; ++i) { |
1466 | // 9.4 |
1467 | node = nextNode; |
1468 | ASSERT(node); |
1469 | nextNode = node->next(); // Save node->next() for the next iteration in case node is deleted in 9.5. |
1470 | // 9.5 |
1471 | if (!m_tree.activeFormattingElements().contains(node->element())) { |
1472 | m_tree.openElements().remove(node->element()); |
1473 | node = 0; |
1474 | continue; |
1475 | } |
1476 | // 9.6 |
1477 | if (node == formattingElementRecord) |
1478 | break; |
1479 | // 9.7 |
1480 | auto newItem = m_tree.createElementFromSavedToken(node->stackItem()); |
1481 | |
1482 | HTMLFormattingElementList::Entry* nodeEntry = m_tree.activeFormattingElements().find(node->element()); |
1483 | nodeEntry->replaceElement(newItem.copyRef()); |
1484 | node->replaceElement(WTFMove(newItem)); |
1485 | |
1486 | // 9.8 |
1487 | if (lastNode == furthestBlock) |
1488 | bookmark.moveToAfter(*nodeEntry); |
1489 | // 9.9 |
1490 | m_tree.reparent(*node, *lastNode); |
1491 | // 9.10 |
1492 | lastNode = node; |
1493 | } |
1494 | // 10. |
1495 | m_tree.insertAlreadyParsedChild(commonAncestor.get(), *lastNode); |
1496 | // 11. |
1497 | auto newItem = m_tree.createElementFromSavedToken(formattingElementRecord->stackItem()); |
1498 | // 12. & 13. |
1499 | m_tree.takeAllChildrenAndReparent(newItem, *furthestBlock); |
1500 | // 14. |
1501 | m_tree.activeFormattingElements().swapTo(*formattingElement, newItem.copyRef(), bookmark); |
1502 | // 15. |
1503 | m_tree.openElements().remove(*formattingElement); |
1504 | m_tree.openElements().insertAbove(WTFMove(newItem), *furthestBlock); |
1505 | } |
1506 | } |
1507 | |
1508 | void HTMLTreeBuilder::resetInsertionModeAppropriately() |
1509 | { |
1510 | // http://www.whatwg.org/specs/web-apps/current-work/multipage/parsing.html#reset-the-insertion-mode-appropriately |
1511 | bool last = false; |
1512 | for (auto* record = &m_tree.openElements().topRecord(); ; record = record->next()) { |
1513 | RefPtr<HTMLStackItem> item = &record->stackItem(); |
1514 | if (&item->node() == &m_tree.openElements().rootNode()) { |
1515 | last = true; |
1516 | bool shouldCreateItem = isParsingFragment(); |
1517 | if (shouldCreateItem) |
1518 | item = &m_fragmentContext.contextElementStackItem(); |
1519 | } |
1520 | |
1521 | if (item->hasTagName(templateTag)) { |
1522 | m_insertionMode = m_templateInsertionModes.last(); |
1523 | return; |
1524 | } |
1525 | |
1526 | if (item->hasTagName(selectTag)) { |
1527 | if (!last) { |
1528 | while (&item->node() != &m_tree.openElements().rootNode() && !item->hasTagName(templateTag)) { |
1529 | record = record->next(); |
1530 | item = &record->stackItem(); |
1531 | if (is<HTMLTableElement>(item->node())) { |
1532 | m_insertionMode = InsertionMode::InSelectInTable; |
1533 | return; |
1534 | } |
1535 | } |
1536 | } |
1537 | m_insertionMode = InsertionMode::InSelect; |
1538 | return; |
1539 | } |
1540 | if (item->hasTagName(tdTag) || item->hasTagName(thTag)) { |
1541 | m_insertionMode = InsertionMode::InCell; |
1542 | return; |
1543 | } |
1544 | if (item->hasTagName(trTag)) { |
1545 | m_insertionMode = InsertionMode::InRow; |
1546 | return; |
1547 | } |
1548 | if (item->hasTagName(tbodyTag) || item->hasTagName(theadTag) || item->hasTagName(tfootTag)) { |
1549 | m_insertionMode = InsertionMode::InTableBody; |
1550 | return; |
1551 | } |
1552 | if (item->hasTagName(captionTag)) { |
1553 | m_insertionMode = InsertionMode::InCaption; |
1554 | return; |
1555 | } |
1556 | if (item->hasTagName(colgroupTag)) { |
1557 | m_insertionMode = InsertionMode::InColumnGroup; |
1558 | return; |
1559 | } |
1560 | if (is<HTMLTableElement>(item->node())) { |
1561 | m_insertionMode = InsertionMode::InTable; |
1562 | return; |
1563 | } |
1564 | if (item->hasTagName(headTag)) { |
1565 | if (!m_fragmentContext.fragment() || &m_fragmentContext.contextElement() != &item->node()) { |
1566 | m_insertionMode = InsertionMode::InHead; |
1567 | return; |
1568 | } |
1569 | m_insertionMode = InsertionMode::InBody; |
1570 | return; |
1571 | } |
1572 | if (item->hasTagName(bodyTag)) { |
1573 | m_insertionMode = InsertionMode::InBody; |
1574 | return; |
1575 | } |
1576 | if (item->hasTagName(framesetTag)) { |
1577 | m_insertionMode = InsertionMode::InFrameset; |
1578 | return; |
1579 | } |
1580 | if (item->hasTagName(htmlTag)) { |
1581 | if (m_tree.headStackItem()) { |
1582 | m_insertionMode = InsertionMode::AfterHead; |
1583 | return; |
1584 | } |
1585 | ASSERT(isParsingFragment()); |
1586 | m_insertionMode = InsertionMode::BeforeHead; |
1587 | return; |
1588 | } |
1589 | if (last) { |
1590 | ASSERT(isParsingFragment()); |
1591 | m_insertionMode = InsertionMode::InBody; |
1592 | return; |
1593 | } |
1594 | } |
1595 | } |
1596 | |
1597 | void HTMLTreeBuilder::processEndTagForInTableBody(AtomicHTMLToken&& token) |
1598 | { |
1599 | ASSERT(token.type() == HTMLToken::EndTag); |
1600 | if (isTableBodyContextTag(token.name())) { |
1601 | if (!m_tree.openElements().inTableScope(token.name())) { |
1602 | parseError(token); |
1603 | return; |
1604 | } |
1605 | m_tree.openElements().popUntilTableBodyScopeMarker(); |
1606 | m_tree.openElements().pop(); |
1607 | m_insertionMode = InsertionMode::InTable; |
1608 | return; |
1609 | } |
1610 | if (token.name() == tableTag) { |
1611 | // FIXME: This is slow. |
1612 | if (!m_tree.openElements().inTableScope(tbodyTag) && !m_tree.openElements().inTableScope(theadTag) && !m_tree.openElements().inTableScope(tfootTag)) { |
1613 | ASSERT(isParsingFragmentOrTemplateContents()); |
1614 | parseError(token); |
1615 | return; |
1616 | } |
1617 | m_tree.openElements().popUntilTableBodyScopeMarker(); |
1618 | ASSERT(isTableBodyContextTag(m_tree.currentStackItem().localName())); |
1619 | processFakeEndTag(m_tree.currentStackItem().localName()); |
1620 | processEndTag(WTFMove(token)); |
1621 | return; |
1622 | } |
1623 | if (token.name() == bodyTag |
1624 | || isCaptionColOrColgroupTag(token.name()) |
1625 | || token.name() == htmlTag |
1626 | || isTableCellContextTag(token.name()) |
1627 | || token.name() == trTag) { |
1628 | parseError(token); |
1629 | return; |
1630 | } |
1631 | processEndTagForInTable(WTFMove(token)); |
1632 | } |
1633 | |
1634 | void HTMLTreeBuilder::processEndTagForInRow(AtomicHTMLToken&& token) |
1635 | { |
1636 | ASSERT(token.type() == HTMLToken::EndTag); |
1637 | if (token.name() == trTag) { |
1638 | processTrEndTagForInRow(); |
1639 | return; |
1640 | } |
1641 | if (token.name() == tableTag) { |
1642 | if (!processTrEndTagForInRow()) { |
1643 | ASSERT(isParsingFragmentOrTemplateContents()); |
1644 | return; |
1645 | } |
1646 | ASSERT(m_insertionMode == InsertionMode::InTableBody); |
1647 | processEndTag(WTFMove(token)); |
1648 | return; |
1649 | } |
1650 | if (isTableBodyContextTag(token.name())) { |
1651 | if (!m_tree.openElements().inTableScope(token.name())) { |
1652 | parseError(token); |
1653 | return; |
1654 | } |
1655 | processFakeEndTag(trTag); |
1656 | ASSERT(m_insertionMode == InsertionMode::InTableBody); |
1657 | processEndTag(WTFMove(token)); |
1658 | return; |
1659 | } |
1660 | if (token.name() == bodyTag |
1661 | || isCaptionColOrColgroupTag(token.name()) |
1662 | || token.name() == htmlTag |
1663 | || isTableCellContextTag(token.name())) { |
1664 | parseError(token); |
1665 | return; |
1666 | } |
1667 | processEndTagForInTable(WTFMove(token)); |
1668 | } |
1669 | |
1670 | void HTMLTreeBuilder::processEndTagForInCell(AtomicHTMLToken&& token) |
1671 | { |
1672 | ASSERT(token.type() == HTMLToken::EndTag); |
1673 | if (isTableCellContextTag(token.name())) { |
1674 | if (!m_tree.openElements().inTableScope(token.name())) { |
1675 | parseError(token); |
1676 | return; |
1677 | } |
1678 | m_tree.generateImpliedEndTags(); |
1679 | if (!m_tree.currentStackItem().matchesHTMLTag(token.name())) |
1680 | parseError(token); |
1681 | m_tree.openElements().popUntilPopped(token.name()); |
1682 | m_tree.activeFormattingElements().clearToLastMarker(); |
1683 | m_insertionMode = InsertionMode::InRow; |
1684 | return; |
1685 | } |
1686 | if (token.name() == bodyTag |
1687 | || isCaptionColOrColgroupTag(token.name()) |
1688 | || token.name() == htmlTag) { |
1689 | parseError(token); |
1690 | return; |
1691 | } |
1692 | if (token.name() == tableTag |
1693 | || token.name() == trTag |
1694 | || isTableBodyContextTag(token.name())) { |
1695 | if (!m_tree.openElements().inTableScope(token.name())) { |
1696 | ASSERT(isTableBodyContextTag(token.name()) || m_tree.openElements().inTableScope(templateTag) || isParsingFragment()); |
1697 | parseError(token); |
1698 | return; |
1699 | } |
1700 | closeTheCell(); |
1701 | processEndTag(WTFMove(token)); |
1702 | return; |
1703 | } |
1704 | processEndTagForInBody(WTFMove(token)); |
1705 | } |
1706 | |
1707 | void HTMLTreeBuilder::processEndTagForInBody(AtomicHTMLToken&& token) |
1708 | { |
1709 | ASSERT(token.type() == HTMLToken::EndTag); |
1710 | if (token.name() == bodyTag) { |
1711 | processBodyEndTagForInBody(WTFMove(token)); |
1712 | return; |
1713 | } |
1714 | if (token.name() == htmlTag) { |
1715 | AtomicHTMLToken endBody(HTMLToken::EndTag, bodyTag->localName()); |
1716 | if (processBodyEndTagForInBody(WTFMove(endBody))) |
1717 | processEndTag(WTFMove(token)); |
1718 | return; |
1719 | } |
1720 | if (token.name() == addressTag |
1721 | || token.name() == articleTag |
1722 | || token.name() == asideTag |
1723 | || token.name() == blockquoteTag |
1724 | || token.name() == buttonTag |
1725 | || token.name() == centerTag |
1726 | || token.name() == detailsTag |
1727 | || token.name() == dirTag |
1728 | || token.name() == divTag |
1729 | || token.name() == dlTag |
1730 | || token.name() == fieldsetTag |
1731 | || token.name() == figcaptionTag |
1732 | || token.name() == figureTag |
1733 | || token.name() == footerTag |
1734 | || token.name() == headerTag |
1735 | || token.name() == hgroupTag |
1736 | || token.name() == listingTag |
1737 | || token.name() == mainTag |
1738 | || token.name() == menuTag |
1739 | || token.name() == navTag |
1740 | || token.name() == olTag |
1741 | || token.name() == preTag |
1742 | || token.name() == sectionTag |
1743 | || token.name() == summaryTag |
1744 | || token.name() == ulTag) { |
1745 | if (!m_tree.openElements().inScope(token.name())) { |
1746 | parseError(token); |
1747 | return; |
1748 | } |
1749 | m_tree.generateImpliedEndTags(); |
1750 | if (!m_tree.currentStackItem().matchesHTMLTag(token.name())) |
1751 | parseError(token); |
1752 | m_tree.openElements().popUntilPopped(token.name()); |
1753 | return; |
1754 | } |
1755 | if (token.name() == formTag) { |
1756 | if (!isParsingTemplateContents()) { |
1757 | RefPtr<Element> formElement = m_tree.takeForm(); |
1758 | if (!formElement || !m_tree.openElements().inScope(*formElement)) { |
1759 | parseError(token); |
1760 | return; |
1761 | } |
1762 | m_tree.generateImpliedEndTags(); |
1763 | if (&m_tree.currentNode() != formElement.get()) |
1764 | parseError(token); |
1765 | m_tree.openElements().remove(*formElement); |
1766 | } else { |
1767 | if (!m_tree.openElements().inScope(token.name())) { |
1768 | parseError(token); |
1769 | return; |
1770 | } |
1771 | m_tree.generateImpliedEndTags(); |
1772 | if (!m_tree.currentNode().hasTagName(formTag)) |
1773 | parseError(token); |
1774 | m_tree.openElements().popUntilPopped(token.name()); |
1775 | } |
1776 | } |
1777 | if (token.name() == pTag) { |
1778 | if (!m_tree.openElements().inButtonScope(token.name())) { |
1779 | parseError(token); |
1780 | processFakeStartTag(pTag); |
1781 | ASSERT(m_tree.openElements().inScope(token.name())); |
1782 | processEndTag(WTFMove(token)); |
1783 | return; |
1784 | } |
1785 | m_tree.generateImpliedEndTagsWithExclusion(token.name()); |
1786 | if (!m_tree.currentStackItem().matchesHTMLTag(token.name())) |
1787 | parseError(token); |
1788 | m_tree.openElements().popUntilPopped(token.name()); |
1789 | return; |
1790 | } |
1791 | if (token.name() == liTag) { |
1792 | if (!m_tree.openElements().inListItemScope(token.name())) { |
1793 | parseError(token); |
1794 | return; |
1795 | } |
1796 | m_tree.generateImpliedEndTagsWithExclusion(token.name()); |
1797 | if (!m_tree.currentStackItem().matchesHTMLTag(token.name())) |
1798 | parseError(token); |
1799 | m_tree.openElements().popUntilPopped(token.name()); |
1800 | return; |
1801 | } |
1802 | if (token.name() == ddTag || token.name() == dtTag) { |
1803 | if (!m_tree.openElements().inScope(token.name())) { |
1804 | parseError(token); |
1805 | return; |
1806 | } |
1807 | m_tree.generateImpliedEndTagsWithExclusion(token.name()); |
1808 | if (!m_tree.currentStackItem().matchesHTMLTag(token.name())) |
1809 | parseError(token); |
1810 | m_tree.openElements().popUntilPopped(token.name()); |
1811 | return; |
1812 | } |
1813 | if (isNumberedHeaderTag(token.name())) { |
1814 | if (!m_tree.openElements().hasNumberedHeaderElementInScope()) { |
1815 | parseError(token); |
1816 | return; |
1817 | } |
1818 | m_tree.generateImpliedEndTags(); |
1819 | if (!m_tree.currentStackItem().matchesHTMLTag(token.name())) |
1820 | parseError(token); |
1821 | m_tree.openElements().popUntilNumberedHeaderElementPopped(); |
1822 | return; |
1823 | } |
1824 | if (HTMLConstructionSite::isFormattingTag(token.name())) { |
1825 | callTheAdoptionAgency(token); |
1826 | return; |
1827 | } |
1828 | if (token.name() == appletTag || token.name() == marqueeTag || token.name() == objectTag) { |
1829 | if (!m_tree.openElements().inScope(token.name())) { |
1830 | parseError(token); |
1831 | return; |
1832 | } |
1833 | m_tree.generateImpliedEndTags(); |
1834 | if (!m_tree.currentStackItem().matchesHTMLTag(token.name())) |
1835 | parseError(token); |
1836 | m_tree.openElements().popUntilPopped(token.name()); |
1837 | m_tree.activeFormattingElements().clearToLastMarker(); |
1838 | return; |
1839 | } |
1840 | if (token.name() == brTag) { |
1841 | parseError(token); |
1842 | processFakeStartTag(brTag); |
1843 | return; |
1844 | } |
1845 | if (token.name() == templateTag) { |
1846 | processTemplateEndTag(WTFMove(token)); |
1847 | return; |
1848 | } |
1849 | processAnyOtherEndTagForInBody(WTFMove(token)); |
1850 | } |
1851 | |
1852 | bool HTMLTreeBuilder::processCaptionEndTagForInCaption() |
1853 | { |
1854 | if (!m_tree.openElements().inTableScope(captionTag->localName())) { |
1855 | ASSERT(isParsingFragment()); |
1856 | // FIXME: parse error |
1857 | return false; |
1858 | } |
1859 | m_tree.generateImpliedEndTags(); |
1860 | // FIXME: parse error if (!m_tree.currentStackItem().hasTagName(captionTag)) |
1861 | m_tree.openElements().popUntilPopped(captionTag->localName()); |
1862 | m_tree.activeFormattingElements().clearToLastMarker(); |
1863 | m_insertionMode = InsertionMode::InTable; |
1864 | return true; |
1865 | } |
1866 | |
1867 | bool HTMLTreeBuilder::processTrEndTagForInRow() |
1868 | { |
1869 | if (!m_tree.openElements().inTableScope(trTag)) { |
1870 | ASSERT(isParsingFragmentOrTemplateContents()); |
1871 | // FIXME: parse error |
1872 | return false; |
1873 | } |
1874 | m_tree.openElements().popUntilTableRowScopeMarker(); |
1875 | ASSERT(m_tree.currentStackItem().hasTagName(trTag)); |
1876 | m_tree.openElements().pop(); |
1877 | m_insertionMode = InsertionMode::InTableBody; |
1878 | return true; |
1879 | } |
1880 | |
1881 | bool HTMLTreeBuilder::processTableEndTagForInTable() |
1882 | { |
1883 | if (!m_tree.openElements().inTableScope(tableTag)) { |
1884 | ASSERT(isParsingFragmentOrTemplateContents()); |
1885 | // FIXME: parse error. |
1886 | return false; |
1887 | } |
1888 | m_tree.openElements().popUntilPopped(tableTag->localName()); |
1889 | resetInsertionModeAppropriately(); |
1890 | return true; |
1891 | } |
1892 | |
1893 | void HTMLTreeBuilder::processEndTagForInTable(AtomicHTMLToken&& token) |
1894 | { |
1895 | ASSERT(token.type() == HTMLToken::EndTag); |
1896 | if (token.name() == tableTag) { |
1897 | processTableEndTagForInTable(); |
1898 | return; |
1899 | } |
1900 | if (token.name() == bodyTag |
1901 | || isCaptionColOrColgroupTag(token.name()) |
1902 | || token.name() == htmlTag |
1903 | || isTableBodyContextTag(token.name()) |
1904 | || isTableCellContextTag(token.name()) |
1905 | || token.name() == trTag) { |
1906 | parseError(token); |
1907 | return; |
1908 | } |
1909 | parseError(token); |
1910 | // Is this redirection necessary here? |
1911 | HTMLConstructionSite::RedirectToFosterParentGuard redirecter(m_tree); |
1912 | processEndTagForInBody(WTFMove(token)); |
1913 | } |
1914 | |
1915 | void HTMLTreeBuilder::processEndTag(AtomicHTMLToken&& token) |
1916 | { |
1917 | ASSERT(token.type() == HTMLToken::EndTag); |
1918 | switch (m_insertionMode) { |
1919 | case InsertionMode::Initial: |
1920 | defaultForInitial(); |
1921 | ASSERT(m_insertionMode == InsertionMode::BeforeHTML); |
1922 | FALLTHROUGH; |
1923 | case InsertionMode::BeforeHTML: |
1924 | if (token.name() != headTag && token.name() != bodyTag && token.name() != htmlTag && token.name() != brTag) { |
1925 | parseError(token); |
1926 | return; |
1927 | } |
1928 | defaultForBeforeHTML(); |
1929 | ASSERT(m_insertionMode == InsertionMode::BeforeHead); |
1930 | FALLTHROUGH; |
1931 | case InsertionMode::BeforeHead: |
1932 | if (token.name() != headTag && token.name() != bodyTag && token.name() != htmlTag && token.name() != brTag) { |
1933 | parseError(token); |
1934 | return; |
1935 | } |
1936 | defaultForBeforeHead(); |
1937 | ASSERT(m_insertionMode == InsertionMode::InHead); |
1938 | FALLTHROUGH; |
1939 | case InsertionMode::InHead: |
1940 | // FIXME: This case should be broken out into processEndTagForInHead, |
1941 | // because other end tag cases now refer to it ("process the token for using the rules of the "in head" insertion mode"). |
1942 | // but because the logic falls through to InsertionMode::AfterHead, that gets a little messy. |
1943 | if (token.name() == templateTag) { |
1944 | processTemplateEndTag(WTFMove(token)); |
1945 | return; |
1946 | } |
1947 | if (token.name() == headTag) { |
1948 | m_tree.openElements().popHTMLHeadElement(); |
1949 | m_insertionMode = InsertionMode::AfterHead; |
1950 | return; |
1951 | } |
1952 | if (token.name() != bodyTag && token.name() != htmlTag && token.name() != brTag) { |
1953 | parseError(token); |
1954 | return; |
1955 | } |
1956 | defaultForInHead(); |
1957 | ASSERT(m_insertionMode == InsertionMode::AfterHead); |
1958 | FALLTHROUGH; |
1959 | case InsertionMode::AfterHead: |
1960 | if (token.name() != bodyTag && token.name() != htmlTag && token.name() != brTag) { |
1961 | parseError(token); |
1962 | return; |
1963 | } |
1964 | defaultForAfterHead(); |
1965 | ASSERT(m_insertionMode == InsertionMode::InBody); |
1966 | FALLTHROUGH; |
1967 | case InsertionMode::InBody: |
1968 | processEndTagForInBody(WTFMove(token)); |
1969 | break; |
1970 | case InsertionMode::InTable: |
1971 | processEndTagForInTable(WTFMove(token)); |
1972 | break; |
1973 | case InsertionMode::InCaption: |
1974 | if (token.name() == captionTag) { |
1975 | processCaptionEndTagForInCaption(); |
1976 | return; |
1977 | } |
1978 | if (token.name() == tableTag) { |
1979 | parseError(token); |
1980 | if (!processCaptionEndTagForInCaption()) { |
1981 | ASSERT(isParsingFragment()); |
1982 | return; |
1983 | } |
1984 | processEndTag(WTFMove(token)); |
1985 | return; |
1986 | } |
1987 | if (token.name() == bodyTag |
1988 | || token.name() == colTag |
1989 | || token.name() == colgroupTag |
1990 | || token.name() == htmlTag |
1991 | || isTableBodyContextTag(token.name()) |
1992 | || isTableCellContextTag(token.name()) |
1993 | || token.name() == trTag) { |
1994 | parseError(token); |
1995 | return; |
1996 | } |
1997 | processEndTagForInBody(WTFMove(token)); |
1998 | break; |
1999 | case InsertionMode::InColumnGroup: |
2000 | if (token.name() == colgroupTag) { |
2001 | processColgroupEndTagForInColumnGroup(); |
2002 | return; |
2003 | } |
2004 | if (token.name() == colTag) { |
2005 | parseError(token); |
2006 | return; |
2007 | } |
2008 | if (token.name() == templateTag) { |
2009 | processTemplateEndTag(WTFMove(token)); |
2010 | return; |
2011 | } |
2012 | if (!processColgroupEndTagForInColumnGroup()) { |
2013 | ASSERT(isParsingFragmentOrTemplateContents()); |
2014 | return; |
2015 | } |
2016 | processEndTag(WTFMove(token)); |
2017 | break; |
2018 | case InsertionMode::InRow: |
2019 | processEndTagForInRow(WTFMove(token)); |
2020 | break; |
2021 | case InsertionMode::InCell: |
2022 | processEndTagForInCell(WTFMove(token)); |
2023 | break; |
2024 | case InsertionMode::InTableBody: |
2025 | processEndTagForInTableBody(WTFMove(token)); |
2026 | break; |
2027 | case InsertionMode::AfterBody: |
2028 | if (token.name() == htmlTag) { |
2029 | if (isParsingFragment()) { |
2030 | parseError(token); |
2031 | return; |
2032 | } |
2033 | m_insertionMode = InsertionMode::AfterAfterBody; |
2034 | return; |
2035 | } |
2036 | FALLTHROUGH; |
2037 | case InsertionMode::AfterAfterBody: |
2038 | ASSERT(m_insertionMode == InsertionMode::AfterBody || m_insertionMode == InsertionMode::AfterAfterBody); |
2039 | parseError(token); |
2040 | m_insertionMode = InsertionMode::InBody; |
2041 | processEndTag(WTFMove(token)); |
2042 | break; |
2043 | case InsertionMode::InHeadNoscript: |
2044 | if (token.name() == noscriptTag) { |
2045 | ASSERT(m_tree.currentStackItem().hasTagName(noscriptTag)); |
2046 | m_tree.openElements().pop(); |
2047 | ASSERT(m_tree.currentStackItem().hasTagName(headTag)); |
2048 | m_insertionMode = InsertionMode::InHead; |
2049 | return; |
2050 | } |
2051 | if (token.name() != brTag) { |
2052 | parseError(token); |
2053 | return; |
2054 | } |
2055 | defaultForInHeadNoscript(); |
2056 | processToken(WTFMove(token)); |
2057 | break; |
2058 | case InsertionMode::Text: |
2059 | if (token.name() == scriptTag) { |
2060 | // Pause ourselves so that parsing stops until the script can be processed by the caller. |
2061 | ASSERT(m_tree.currentStackItem().hasTagName(scriptTag)); |
2062 | if (scriptingContentIsAllowed(m_tree.parserContentPolicy())) |
2063 | m_scriptToProcess = &downcast<HTMLScriptElement>(m_tree.currentElement()); |
2064 | m_tree.openElements().pop(); |
2065 | m_insertionMode = m_originalInsertionMode; |
2066 | |
2067 | // This token will not have been created by the tokenizer if a |
2068 | // self-closing script tag was encountered and pre-HTML5 parser |
2069 | // quirks are enabled. We must set the tokenizer's state to |
2070 | // DataState explicitly if the tokenizer didn't have a chance to. |
2071 | ASSERT(m_parser.tokenizer().isInDataState() || m_options.usePreHTML5ParserQuirks); |
2072 | m_parser.tokenizer().setDataState(); |
2073 | return; |
2074 | } |
2075 | m_tree.openElements().pop(); |
2076 | m_insertionMode = m_originalInsertionMode; |
2077 | break; |
2078 | case InsertionMode::InFrameset: |
2079 | if (token.name() == framesetTag) { |
2080 | bool ignoreFramesetForFragmentParsing = m_tree.currentIsRootNode() || m_tree.openElements().hasTemplateInHTMLScope(); |
2081 | if (ignoreFramesetForFragmentParsing) { |
2082 | ASSERT(isParsingFragmentOrTemplateContents()); |
2083 | parseError(token); |
2084 | return; |
2085 | } |
2086 | m_tree.openElements().pop(); |
2087 | if (!isParsingFragment() && !m_tree.currentStackItem().hasTagName(framesetTag)) |
2088 | m_insertionMode = InsertionMode::AfterFrameset; |
2089 | return; |
2090 | } |
2091 | break; |
2092 | case InsertionMode::AfterFrameset: |
2093 | if (token.name() == htmlTag) { |
2094 | m_insertionMode = InsertionMode::AfterAfterFrameset; |
2095 | return; |
2096 | } |
2097 | FALLTHROUGH; |
2098 | case InsertionMode::AfterAfterFrameset: |
2099 | ASSERT(m_insertionMode == InsertionMode::AfterFrameset || m_insertionMode == InsertionMode::AfterAfterFrameset); |
2100 | parseError(token); |
2101 | break; |
2102 | case InsertionMode::InSelectInTable: |
2103 | if (token.name() == captionTag |
2104 | || token.name() == tableTag |
2105 | || isTableBodyContextTag(token.name()) |
2106 | || token.name() == trTag |
2107 | || isTableCellContextTag(token.name())) { |
2108 | parseError(token); |
2109 | if (m_tree.openElements().inTableScope(token.name())) { |
2110 | AtomicHTMLToken endSelect(HTMLToken::EndTag, selectTag->localName()); |
2111 | processEndTag(WTFMove(endSelect)); |
2112 | processEndTag(WTFMove(token)); |
2113 | } |
2114 | return; |
2115 | } |
2116 | FALLTHROUGH; |
2117 | case InsertionMode::InSelect: |
2118 | ASSERT(m_insertionMode == InsertionMode::InSelect || m_insertionMode == InsertionMode::InSelectInTable); |
2119 | if (token.name() == optgroupTag) { |
2120 | if (is<HTMLOptionElement>(m_tree.currentStackItem().node()) && m_tree.oneBelowTop() && is<HTMLOptGroupElement>(m_tree.oneBelowTop()->node())) |
2121 | processFakeEndTag(optionTag); |
2122 | if (is<HTMLOptGroupElement>(m_tree.currentStackItem().node())) { |
2123 | m_tree.openElements().pop(); |
2124 | return; |
2125 | } |
2126 | parseError(token); |
2127 | return; |
2128 | } |
2129 | if (token.name() == optionTag) { |
2130 | if (is<HTMLOptionElement>(m_tree.currentStackItem().node())) { |
2131 | m_tree.openElements().pop(); |
2132 | return; |
2133 | } |
2134 | parseError(token); |
2135 | return; |
2136 | } |
2137 | if (token.name() == selectTag) { |
2138 | if (!m_tree.openElements().inSelectScope(token.name())) { |
2139 | ASSERT(isParsingFragment()); |
2140 | parseError(token); |
2141 | return; |
2142 | } |
2143 | m_tree.openElements().popUntilPopped(selectTag->localName()); |
2144 | resetInsertionModeAppropriately(); |
2145 | return; |
2146 | } |
2147 | if (token.name() == templateTag) { |
2148 | processTemplateEndTag(WTFMove(token)); |
2149 | return; |
2150 | } |
2151 | break; |
2152 | case InsertionMode::InTableText: |
2153 | defaultForInTableText(); |
2154 | processEndTag(WTFMove(token)); |
2155 | break; |
2156 | case InsertionMode::TemplateContents: |
2157 | if (token.name() == templateTag) { |
2158 | processTemplateEndTag(WTFMove(token)); |
2159 | return; |
2160 | } |
2161 | break; |
2162 | } |
2163 | } |
2164 | |
2165 | void HTMLTreeBuilder::(AtomicHTMLToken&& token) |
2166 | { |
2167 | ASSERT(token.type() == HTMLToken::Comment); |
2168 | if (m_insertionMode == InsertionMode::Initial |
2169 | || m_insertionMode == InsertionMode::BeforeHTML |
2170 | || m_insertionMode == InsertionMode::AfterAfterBody |
2171 | || m_insertionMode == InsertionMode::AfterAfterFrameset) { |
2172 | m_tree.insertCommentOnDocument(WTFMove(token)); |
2173 | return; |
2174 | } |
2175 | if (m_insertionMode == InsertionMode::AfterBody) { |
2176 | m_tree.insertCommentOnHTMLHtmlElement(WTFMove(token)); |
2177 | return; |
2178 | } |
2179 | if (m_insertionMode == InsertionMode::InTableText) { |
2180 | defaultForInTableText(); |
2181 | processComment(WTFMove(token)); |
2182 | return; |
2183 | } |
2184 | m_tree.insertComment(WTFMove(token)); |
2185 | } |
2186 | |
2187 | void HTMLTreeBuilder::processCharacter(AtomicHTMLToken&& token) |
2188 | { |
2189 | ASSERT(token.type() == HTMLToken::Character); |
2190 | ExternalCharacterTokenBuffer buffer(token); |
2191 | processCharacterBuffer(buffer); |
2192 | } |
2193 | |
2194 | #if ENABLE(TELEPHONE_NUMBER_DETECTION) && PLATFORM(IOS_FAMILY) |
2195 | |
2196 | // FIXME: Extract the following iOS-specific code into a separate file. |
2197 | // From the string 4089961010, creates a link of the form <a href="tel:4089961010">4089961010</a> and inserts it. |
2198 | void HTMLTreeBuilder::insertPhoneNumberLink(const String& string) |
2199 | { |
2200 | Vector<Attribute> attributes; |
2201 | attributes.append(Attribute(HTMLNames::hrefAttr, makeString("tel:"_s , string))); |
2202 | |
2203 | const AtomicString& aTagLocalName = aTag->localName(); |
2204 | AtomicHTMLToken aStartToken(HTMLToken::StartTag, aTagLocalName, WTFMove(attributes)); |
2205 | AtomicHTMLToken aEndToken(HTMLToken::EndTag, aTagLocalName); |
2206 | |
2207 | processStartTag(WTFMove(aStartToken)); |
2208 | m_tree.executeQueuedTasks(); |
2209 | m_tree.insertTextNode(string); |
2210 | processEndTag(WTFMove(aEndToken)); |
2211 | } |
2212 | |
2213 | // Locates the phone numbers in the string and deals with it |
2214 | // 1. Appends the text before the phone number as a text node. |
2215 | // 2. Wraps the phone number in a tel: link. |
2216 | // 3. Goes back to step 1 if a phone number is found in the rest of the string. |
2217 | // 4. Appends the rest of the string as a text node. |
2218 | void HTMLTreeBuilder::linkifyPhoneNumbers(const String& string) |
2219 | { |
2220 | ASSERT(TelephoneNumberDetector::isSupported()); |
2221 | |
2222 | // relativeStartPosition and relativeEndPosition are the endpoints of the phone number range, |
2223 | // relative to the scannerPosition |
2224 | unsigned length = string.length(); |
2225 | unsigned scannerPosition = 0; |
2226 | int relativeStartPosition = 0; |
2227 | int relativeEndPosition = 0; |
2228 | |
2229 | auto characters = StringView(string).upconvertedCharacters(); |
2230 | |
2231 | // While there's a phone number in the rest of the string... |
2232 | while (scannerPosition < length && TelephoneNumberDetector::find(&characters[scannerPosition], length - scannerPosition, &relativeStartPosition, &relativeEndPosition)) { |
2233 | // The convention in the Data Detectors framework is that the end position is the first character NOT in the phone number |
2234 | // (that is, the length of the range is relativeEndPosition - relativeStartPosition). So substract 1 to get the same |
2235 | // convention as the old WebCore phone number parser (so that the rest of the code is still valid if we want to go back |
2236 | // to the old parser). |
2237 | --relativeEndPosition; |
2238 | |
2239 | ASSERT(scannerPosition + relativeEndPosition < length); |
2240 | |
2241 | m_tree.insertTextNode(string.substring(scannerPosition, relativeStartPosition)); |
2242 | insertPhoneNumberLink(string.substring(scannerPosition + relativeStartPosition, relativeEndPosition - relativeStartPosition + 1)); |
2243 | |
2244 | scannerPosition += relativeEndPosition + 1; |
2245 | } |
2246 | |
2247 | // Append the rest as a text node. |
2248 | if (scannerPosition > 0) { |
2249 | if (scannerPosition < length) { |
2250 | String after = string.substring(scannerPosition, length - scannerPosition); |
2251 | m_tree.insertTextNode(after); |
2252 | } |
2253 | } else |
2254 | m_tree.insertTextNode(string); |
2255 | } |
2256 | |
2257 | // Looks at the ancestors of the element to determine whether we're inside an element which disallows parsing phone numbers. |
2258 | static inline bool disallowTelephoneNumberParsing(const ContainerNode& node) |
2259 | { |
2260 | return node.isLink() |
2261 | || node.hasTagName(scriptTag) |
2262 | || is<HTMLFormControlElement>(node) |
2263 | || node.hasTagName(styleTag) |
2264 | || node.hasTagName(ttTag) |
2265 | || node.hasTagName(preTag) |
2266 | || node.hasTagName(codeTag); |
2267 | } |
2268 | |
2269 | static inline bool shouldParseTelephoneNumbersInNode(const ContainerNode& node) |
2270 | { |
2271 | for (const ContainerNode* ancestor = &node; ancestor; ancestor = ancestor->parentNode()) { |
2272 | if (disallowTelephoneNumberParsing(*ancestor)) |
2273 | return false; |
2274 | } |
2275 | return true; |
2276 | } |
2277 | |
2278 | #endif // ENABLE(TELEPHONE_NUMBER_DETECTION) && PLATFORM(IOS_FAMILY) |
2279 | |
2280 | void HTMLTreeBuilder::processCharacterBuffer(ExternalCharacterTokenBuffer& buffer) |
2281 | { |
2282 | ReprocessBuffer: |
2283 | // http://www.whatwg.org/specs/web-apps/current-work/multipage/tokenization.html#parsing-main-inbody |
2284 | // Note that this logic is different than the generic \r\n collapsing |
2285 | // handled in the input stream preprocessor. This logic is here as an |
2286 | // "authoring convenience" so folks can write: |
2287 | // |
2288 | // <pre> |
2289 | // lorem ipsum |
2290 | // lorem ipsum |
2291 | // </pre> |
2292 | // |
2293 | // without getting an extra newline at the start of their <pre> element. |
2294 | if (m_shouldSkipLeadingNewline) { |
2295 | m_shouldSkipLeadingNewline = false; |
2296 | buffer.skipAtMostOneLeadingNewline(); |
2297 | if (buffer.isEmpty()) |
2298 | return; |
2299 | } |
2300 | |
2301 | switch (m_insertionMode) { |
2302 | case InsertionMode::Initial: |
2303 | buffer.skipLeadingWhitespace(); |
2304 | if (buffer.isEmpty()) |
2305 | return; |
2306 | defaultForInitial(); |
2307 | ASSERT(m_insertionMode == InsertionMode::BeforeHTML); |
2308 | FALLTHROUGH; |
2309 | case InsertionMode::BeforeHTML: |
2310 | buffer.skipLeadingWhitespace(); |
2311 | if (buffer.isEmpty()) |
2312 | return; |
2313 | defaultForBeforeHTML(); |
2314 | ASSERT(m_insertionMode == InsertionMode::BeforeHead); |
2315 | FALLTHROUGH; |
2316 | case InsertionMode::BeforeHead: |
2317 | buffer.skipLeadingWhitespace(); |
2318 | if (buffer.isEmpty()) |
2319 | return; |
2320 | defaultForBeforeHead(); |
2321 | ASSERT(m_insertionMode == InsertionMode::InHead); |
2322 | FALLTHROUGH; |
2323 | case InsertionMode::InHead: { |
2324 | String leadingWhitespace = buffer.takeLeadingWhitespace(); |
2325 | if (!leadingWhitespace.isEmpty()) |
2326 | m_tree.insertTextNode(leadingWhitespace, AllWhitespace); |
2327 | if (buffer.isEmpty()) |
2328 | return; |
2329 | defaultForInHead(); |
2330 | ASSERT(m_insertionMode == InsertionMode::AfterHead); |
2331 | FALLTHROUGH; |
2332 | } |
2333 | case InsertionMode::AfterHead: { |
2334 | String leadingWhitespace = buffer.takeLeadingWhitespace(); |
2335 | if (!leadingWhitespace.isEmpty()) |
2336 | m_tree.insertTextNode(leadingWhitespace, AllWhitespace); |
2337 | if (buffer.isEmpty()) |
2338 | return; |
2339 | defaultForAfterHead(); |
2340 | ASSERT(m_insertionMode == InsertionMode::InBody); |
2341 | FALLTHROUGH; |
2342 | } |
2343 | case InsertionMode::InBody: |
2344 | case InsertionMode::InCaption: |
2345 | case InsertionMode::InCell: |
2346 | case InsertionMode::TemplateContents: |
2347 | processCharacterBufferForInBody(buffer); |
2348 | break; |
2349 | case InsertionMode::InTable: |
2350 | case InsertionMode::InTableBody: |
2351 | case InsertionMode::InRow: |
2352 | ASSERT(m_pendingTableCharacters.isEmpty()); |
2353 | if (is<HTMLTableElement>(m_tree.currentStackItem().node()) |
2354 | || m_tree.currentStackItem().hasTagName(HTMLNames::tbodyTag) |
2355 | || m_tree.currentStackItem().hasTagName(HTMLNames::tfootTag) |
2356 | || m_tree.currentStackItem().hasTagName(HTMLNames::theadTag) |
2357 | || m_tree.currentStackItem().hasTagName(HTMLNames::trTag)) { |
2358 | |
2359 | m_originalInsertionMode = m_insertionMode; |
2360 | m_insertionMode = InsertionMode::InTableText; |
2361 | // Note that we fall through to the InsertionMode::InTableText case below. |
2362 | } else { |
2363 | HTMLConstructionSite::RedirectToFosterParentGuard redirecter(m_tree); |
2364 | processCharacterBufferForInBody(buffer); |
2365 | break; |
2366 | } |
2367 | FALLTHROUGH; |
2368 | case InsertionMode::InTableText: |
2369 | buffer.giveRemainingTo(m_pendingTableCharacters); |
2370 | break; |
2371 | case InsertionMode::InColumnGroup: { |
2372 | String leadingWhitespace = buffer.takeLeadingWhitespace(); |
2373 | if (!leadingWhitespace.isEmpty()) |
2374 | m_tree.insertTextNode(leadingWhitespace, AllWhitespace); |
2375 | if (buffer.isEmpty()) |
2376 | return; |
2377 | if (!processColgroupEndTagForInColumnGroup()) { |
2378 | ASSERT(isParsingFragmentOrTemplateContents()); |
2379 | // The spec tells us to drop these characters on the floor. |
2380 | buffer.skipLeadingNonWhitespace(); |
2381 | if (buffer.isEmpty()) |
2382 | return; |
2383 | } |
2384 | goto ReprocessBuffer; |
2385 | } |
2386 | case InsertionMode::AfterBody: |
2387 | case InsertionMode::AfterAfterBody: |
2388 | // FIXME: parse error |
2389 | m_insertionMode = InsertionMode::InBody; |
2390 | goto ReprocessBuffer; |
2391 | case InsertionMode::Text: |
2392 | m_tree.insertTextNode(buffer.takeRemaining()); |
2393 | break; |
2394 | case InsertionMode::InHeadNoscript: { |
2395 | String leadingWhitespace = buffer.takeLeadingWhitespace(); |
2396 | if (!leadingWhitespace.isEmpty()) |
2397 | m_tree.insertTextNode(leadingWhitespace, AllWhitespace); |
2398 | if (buffer.isEmpty()) |
2399 | return; |
2400 | defaultForInHeadNoscript(); |
2401 | goto ReprocessBuffer; |
2402 | } |
2403 | case InsertionMode::InFrameset: |
2404 | case InsertionMode::AfterFrameset: { |
2405 | String leadingWhitespace = buffer.takeRemainingWhitespace(); |
2406 | if (!leadingWhitespace.isEmpty()) |
2407 | m_tree.insertTextNode(leadingWhitespace, AllWhitespace); |
2408 | // FIXME: We should generate a parse error if we skipped over any |
2409 | // non-whitespace characters. |
2410 | break; |
2411 | } |
2412 | case InsertionMode::InSelectInTable: |
2413 | case InsertionMode::InSelect: |
2414 | m_tree.insertTextNode(buffer.takeRemaining()); |
2415 | break; |
2416 | case InsertionMode::AfterAfterFrameset: { |
2417 | String leadingWhitespace = buffer.takeRemainingWhitespace(); |
2418 | if (!leadingWhitespace.isEmpty()) { |
2419 | m_tree.reconstructTheActiveFormattingElements(); |
2420 | m_tree.insertTextNode(leadingWhitespace, AllWhitespace); |
2421 | } |
2422 | // FIXME: We should generate a parse error if we skipped over any |
2423 | // non-whitespace characters. |
2424 | break; |
2425 | } |
2426 | } |
2427 | } |
2428 | |
2429 | void HTMLTreeBuilder::processCharacterBufferForInBody(ExternalCharacterTokenBuffer& buffer) |
2430 | { |
2431 | m_tree.reconstructTheActiveFormattingElements(); |
2432 | String characters = buffer.takeRemaining(); |
2433 | #if ENABLE(TELEPHONE_NUMBER_DETECTION) && PLATFORM(IOS_FAMILY) |
2434 | if (!isParsingFragment() && m_tree.isTelephoneNumberParsingEnabled() && shouldParseTelephoneNumbersInNode(m_tree.currentNode()) && TelephoneNumberDetector::isSupported()) |
2435 | linkifyPhoneNumbers(characters); |
2436 | else |
2437 | m_tree.insertTextNode(characters); |
2438 | #else |
2439 | m_tree.insertTextNode(characters); |
2440 | #endif |
2441 | if (m_framesetOk && !isAllWhitespaceOrReplacementCharacters(characters)) |
2442 | m_framesetOk = false; |
2443 | } |
2444 | |
2445 | void HTMLTreeBuilder::processEndOfFile(AtomicHTMLToken&& token) |
2446 | { |
2447 | ASSERT(token.type() == HTMLToken::EndOfFile); |
2448 | switch (m_insertionMode) { |
2449 | case InsertionMode::Initial: |
2450 | defaultForInitial(); |
2451 | ASSERT(m_insertionMode == InsertionMode::BeforeHTML); |
2452 | FALLTHROUGH; |
2453 | case InsertionMode::BeforeHTML: |
2454 | defaultForBeforeHTML(); |
2455 | ASSERT(m_insertionMode == InsertionMode::BeforeHead); |
2456 | FALLTHROUGH; |
2457 | case InsertionMode::BeforeHead: |
2458 | defaultForBeforeHead(); |
2459 | ASSERT(m_insertionMode == InsertionMode::InHead); |
2460 | FALLTHROUGH; |
2461 | case InsertionMode::InHead: |
2462 | defaultForInHead(); |
2463 | ASSERT(m_insertionMode == InsertionMode::AfterHead); |
2464 | FALLTHROUGH; |
2465 | case InsertionMode::AfterHead: |
2466 | defaultForAfterHead(); |
2467 | ASSERT(m_insertionMode == InsertionMode::InBody); |
2468 | FALLTHROUGH; |
2469 | case InsertionMode::InBody: |
2470 | case InsertionMode::InCell: |
2471 | case InsertionMode::InCaption: |
2472 | case InsertionMode::InRow: |
2473 | notImplemented(); // Emit parse error based on what elements are still open. |
2474 | if (!m_templateInsertionModes.isEmpty()) { |
2475 | if (processEndOfFileForInTemplateContents(WTFMove(token))) |
2476 | return; |
2477 | } |
2478 | break; |
2479 | case InsertionMode::AfterBody: |
2480 | case InsertionMode::AfterAfterBody: |
2481 | break; |
2482 | case InsertionMode::InHeadNoscript: |
2483 | defaultForInHeadNoscript(); |
2484 | processEndOfFile(WTFMove(token)); |
2485 | return; |
2486 | case InsertionMode::AfterFrameset: |
2487 | case InsertionMode::AfterAfterFrameset: |
2488 | break; |
2489 | case InsertionMode::InColumnGroup: |
2490 | if (m_tree.currentIsRootNode()) { |
2491 | ASSERT(isParsingFragment()); |
2492 | return; // FIXME: Should we break here instead of returning? |
2493 | } |
2494 | ASSERT(m_tree.currentNode().hasTagName(colgroupTag) || m_tree.currentNode().hasTagName(templateTag)); |
2495 | processColgroupEndTagForInColumnGroup(); |
2496 | FALLTHROUGH; |
2497 | case InsertionMode::InFrameset: |
2498 | case InsertionMode::InTable: |
2499 | case InsertionMode::InTableBody: |
2500 | case InsertionMode::InSelectInTable: |
2501 | case InsertionMode::InSelect: |
2502 | ASSERT(m_insertionMode == InsertionMode::InSelect || m_insertionMode == InsertionMode::InSelectInTable || m_insertionMode == InsertionMode::InTable || m_insertionMode == InsertionMode::InFrameset || m_insertionMode == InsertionMode::InTableBody || m_insertionMode == InsertionMode::InColumnGroup); |
2503 | if (&m_tree.currentNode() != &m_tree.openElements().rootNode()) |
2504 | parseError(token); |
2505 | if (!m_templateInsertionModes.isEmpty()) { |
2506 | if (processEndOfFileForInTemplateContents(WTFMove(token))) |
2507 | return; |
2508 | } |
2509 | break; |
2510 | case InsertionMode::InTableText: |
2511 | defaultForInTableText(); |
2512 | processEndOfFile(WTFMove(token)); |
2513 | return; |
2514 | case InsertionMode::Text: |
2515 | parseError(token); |
2516 | if (m_tree.currentStackItem().hasTagName(scriptTag)) |
2517 | notImplemented(); // mark the script element as "already started". |
2518 | m_tree.openElements().pop(); |
2519 | ASSERT(m_originalInsertionMode != InsertionMode::Text); |
2520 | m_insertionMode = m_originalInsertionMode; |
2521 | processEndOfFile(WTFMove(token)); |
2522 | return; |
2523 | case InsertionMode::TemplateContents: |
2524 | if (processEndOfFileForInTemplateContents(WTFMove(token))) |
2525 | return; |
2526 | break; |
2527 | } |
2528 | m_tree.openElements().popAll(); |
2529 | } |
2530 | |
2531 | void HTMLTreeBuilder::defaultForInitial() |
2532 | { |
2533 | notImplemented(); |
2534 | m_tree.setDefaultCompatibilityMode(); |
2535 | // FIXME: parse error |
2536 | m_insertionMode = InsertionMode::BeforeHTML; |
2537 | } |
2538 | |
2539 | void HTMLTreeBuilder::defaultForBeforeHTML() |
2540 | { |
2541 | AtomicHTMLToken startHTML(HTMLToken::StartTag, htmlTag->localName()); |
2542 | m_tree.insertHTMLHtmlStartTagBeforeHTML(WTFMove(startHTML)); |
2543 | m_insertionMode = InsertionMode::BeforeHead; |
2544 | } |
2545 | |
2546 | void HTMLTreeBuilder::defaultForBeforeHead() |
2547 | { |
2548 | AtomicHTMLToken startHead(HTMLToken::StartTag, headTag->localName()); |
2549 | processStartTag(WTFMove(startHead)); |
2550 | } |
2551 | |
2552 | void HTMLTreeBuilder::defaultForInHead() |
2553 | { |
2554 | AtomicHTMLToken endHead(HTMLToken::EndTag, headTag->localName()); |
2555 | processEndTag(WTFMove(endHead)); |
2556 | } |
2557 | |
2558 | void HTMLTreeBuilder::defaultForInHeadNoscript() |
2559 | { |
2560 | AtomicHTMLToken endNoscript(HTMLToken::EndTag, noscriptTag->localName()); |
2561 | processEndTag(WTFMove(endNoscript)); |
2562 | } |
2563 | |
2564 | void HTMLTreeBuilder::defaultForAfterHead() |
2565 | { |
2566 | AtomicHTMLToken startBody(HTMLToken::StartTag, bodyTag->localName()); |
2567 | processStartTag(WTFMove(startBody)); |
2568 | m_framesetOk = true; |
2569 | } |
2570 | |
2571 | void HTMLTreeBuilder::defaultForInTableText() |
2572 | { |
2573 | String characters = m_pendingTableCharacters.toString(); |
2574 | m_pendingTableCharacters.clear(); |
2575 | if (!isAllWhitespace(characters)) { |
2576 | // FIXME: parse error |
2577 | HTMLConstructionSite::RedirectToFosterParentGuard redirecter(m_tree); |
2578 | m_tree.reconstructTheActiveFormattingElements(); |
2579 | m_tree.insertTextNode(characters, NotAllWhitespace); |
2580 | m_framesetOk = false; |
2581 | m_insertionMode = m_originalInsertionMode; |
2582 | return; |
2583 | } |
2584 | m_tree.insertTextNode(characters); |
2585 | m_insertionMode = m_originalInsertionMode; |
2586 | } |
2587 | |
2588 | bool HTMLTreeBuilder::processStartTagForInHead(AtomicHTMLToken&& token) |
2589 | { |
2590 | ASSERT(token.type() == HTMLToken::StartTag); |
2591 | if (token.name() == htmlTag) { |
2592 | processHtmlStartTagForInBody(WTFMove(token)); |
2593 | return true; |
2594 | } |
2595 | if (token.name() == baseTag |
2596 | || token.name() == basefontTag |
2597 | || token.name() == bgsoundTag |
2598 | || token.name() == commandTag |
2599 | || token.name() == linkTag |
2600 | || token.name() == metaTag) { |
2601 | m_tree.insertSelfClosingHTMLElement(WTFMove(token)); |
2602 | // Note: The custom processing for the <meta> tag is done in HTMLMetaElement::process(). |
2603 | return true; |
2604 | } |
2605 | if (token.name() == titleTag) { |
2606 | processGenericRCDATAStartTag(WTFMove(token)); |
2607 | return true; |
2608 | } |
2609 | if (token.name() == noscriptTag) { |
2610 | if (m_options.scriptEnabled) { |
2611 | processGenericRawTextStartTag(WTFMove(token)); |
2612 | return true; |
2613 | } |
2614 | m_tree.insertHTMLElement(WTFMove(token)); |
2615 | m_insertionMode = InsertionMode::InHeadNoscript; |
2616 | return true; |
2617 | } |
2618 | if (token.name() == noframesTag || token.name() == styleTag) { |
2619 | processGenericRawTextStartTag(WTFMove(token)); |
2620 | return true; |
2621 | } |
2622 | if (token.name() == scriptTag) { |
2623 | bool isSelfClosing = token.selfClosing(); |
2624 | processScriptStartTag(WTFMove(token)); |
2625 | if (m_options.usePreHTML5ParserQuirks && isSelfClosing) |
2626 | processFakeEndTag(scriptTag); |
2627 | return true; |
2628 | } |
2629 | if (token.name() == templateTag) { |
2630 | m_framesetOk = false; |
2631 | processTemplateStartTag(WTFMove(token)); |
2632 | return true; |
2633 | } |
2634 | if (token.name() == headTag) { |
2635 | parseError(token); |
2636 | return true; |
2637 | } |
2638 | return false; |
2639 | } |
2640 | |
2641 | void HTMLTreeBuilder::processGenericRCDATAStartTag(AtomicHTMLToken&& token) |
2642 | { |
2643 | ASSERT(token.type() == HTMLToken::StartTag); |
2644 | m_tree.insertHTMLElement(WTFMove(token)); |
2645 | m_parser.tokenizer().setRCDATAState(); |
2646 | m_originalInsertionMode = m_insertionMode; |
2647 | m_insertionMode = InsertionMode::Text; |
2648 | } |
2649 | |
2650 | void HTMLTreeBuilder::processGenericRawTextStartTag(AtomicHTMLToken&& token) |
2651 | { |
2652 | ASSERT(token.type() == HTMLToken::StartTag); |
2653 | m_tree.insertHTMLElement(WTFMove(token)); |
2654 | m_parser.tokenizer().setRAWTEXTState(); |
2655 | m_originalInsertionMode = m_insertionMode; |
2656 | m_insertionMode = InsertionMode::Text; |
2657 | } |
2658 | |
2659 | void HTMLTreeBuilder::processScriptStartTag(AtomicHTMLToken&& token) |
2660 | { |
2661 | ASSERT(token.type() == HTMLToken::StartTag); |
2662 | m_tree.insertScriptElement(WTFMove(token)); |
2663 | m_parser.tokenizer().setScriptDataState(); |
2664 | m_originalInsertionMode = m_insertionMode; |
2665 | |
2666 | TextPosition position = m_parser.textPosition(); |
2667 | |
2668 | m_scriptToProcessStartPosition = position; |
2669 | |
2670 | m_insertionMode = InsertionMode::Text; |
2671 | } |
2672 | |
2673 | // http://www.whatwg.org/specs/web-apps/current-work/#adjusted-current-node |
2674 | HTMLStackItem& HTMLTreeBuilder::adjustedCurrentStackItem() const |
2675 | { |
2676 | ASSERT(!m_tree.isEmpty()); |
2677 | if (isParsingFragment() && m_tree.openElements().hasOnlyOneElement()) |
2678 | return m_fragmentContext.contextElementStackItem(); |
2679 | |
2680 | return m_tree.currentStackItem(); |
2681 | } |
2682 | |
2683 | // http://www.whatwg.org/specs/web-apps/current-work/multipage/tree-construction.html#tree-construction |
2684 | bool HTMLTreeBuilder::shouldProcessTokenInForeignContent(const AtomicHTMLToken& token) |
2685 | { |
2686 | if (m_tree.isEmpty()) |
2687 | return false; |
2688 | HTMLStackItem& adjustedCurrentNode = adjustedCurrentStackItem(); |
2689 | if (isInHTMLNamespace(adjustedCurrentNode)) |
2690 | return false; |
2691 | if (HTMLElementStack::isMathMLTextIntegrationPoint(adjustedCurrentNode)) { |
2692 | if (token.type() == HTMLToken::StartTag |
2693 | && token.name() != MathMLNames::mglyphTag |
2694 | && token.name() != MathMLNames::malignmarkTag) |
2695 | return false; |
2696 | if (token.type() == HTMLToken::Character) |
2697 | return false; |
2698 | } |
2699 | if (adjustedCurrentNode.hasTagName(MathMLNames::annotation_xmlTag) |
2700 | && token.type() == HTMLToken::StartTag |
2701 | && token.name() == SVGNames::svgTag) |
2702 | return false; |
2703 | if (HTMLElementStack::isHTMLIntegrationPoint(adjustedCurrentNode)) { |
2704 | if (token.type() == HTMLToken::StartTag) |
2705 | return false; |
2706 | if (token.type() == HTMLToken::Character) |
2707 | return false; |
2708 | } |
2709 | if (token.type() == HTMLToken::EndOfFile) |
2710 | return false; |
2711 | return true; |
2712 | } |
2713 | |
2714 | static bool hasAttribute(const AtomicHTMLToken& token, const QualifiedName& name) |
2715 | { |
2716 | return findAttribute(token.attributes(), name); |
2717 | } |
2718 | |
2719 | void HTMLTreeBuilder::processTokenInForeignContent(AtomicHTMLToken&& token) |
2720 | { |
2721 | HTMLStackItem& adjustedCurrentNode = adjustedCurrentStackItem(); |
2722 | |
2723 | switch (token.type()) { |
2724 | case HTMLToken::Uninitialized: |
2725 | ASSERT_NOT_REACHED(); |
2726 | break; |
2727 | case HTMLToken::DOCTYPE: |
2728 | parseError(token); |
2729 | break; |
2730 | case HTMLToken::StartTag: { |
2731 | if (token.name() == bTag |
2732 | || token.name() == bigTag |
2733 | || token.name() == blockquoteTag |
2734 | || token.name() == bodyTag |
2735 | || token.name() == brTag |
2736 | || token.name() == centerTag |
2737 | || token.name() == codeTag |
2738 | || token.name() == ddTag |
2739 | || token.name() == divTag |
2740 | || token.name() == dlTag |
2741 | || token.name() == dtTag |
2742 | || token.name() == emTag |
2743 | || token.name() == embedTag |
2744 | || isNumberedHeaderTag(token.name()) |
2745 | || token.name() == headTag |
2746 | || token.name() == hrTag |
2747 | || token.name() == iTag |
2748 | || token.name() == imgTag |
2749 | || token.name() == liTag |
2750 | || token.name() == listingTag |
2751 | || token.name() == menuTag |
2752 | || token.name() == metaTag |
2753 | || token.name() == nobrTag |
2754 | || token.name() == olTag |
2755 | || token.name() == pTag |
2756 | || token.name() == preTag |
2757 | || token.name() == rubyTag |
2758 | || token.name() == sTag |
2759 | || token.name() == smallTag |
2760 | || token.name() == spanTag |
2761 | || token.name() == strongTag |
2762 | || token.name() == strikeTag |
2763 | || token.name() == subTag |
2764 | || token.name() == supTag |
2765 | || token.name() == tableTag |
2766 | || token.name() == ttTag |
2767 | || token.name() == uTag |
2768 | || token.name() == ulTag |
2769 | || token.name() == varTag |
2770 | || (token.name() == fontTag && (hasAttribute(token, colorAttr) || hasAttribute(token, faceAttr) || hasAttribute(token, sizeAttr)))) { |
2771 | parseError(token); |
2772 | m_tree.openElements().popUntilForeignContentScopeMarker(); |
2773 | processStartTag(WTFMove(token)); |
2774 | return; |
2775 | } |
2776 | const AtomicString& currentNamespace = adjustedCurrentNode.namespaceURI(); |
2777 | if (currentNamespace == MathMLNames::mathmlNamespaceURI) |
2778 | adjustMathMLAttributes(token); |
2779 | if (currentNamespace == SVGNames::svgNamespaceURI) { |
2780 | adjustSVGTagNameCase(token); |
2781 | adjustSVGAttributes(token); |
2782 | } |
2783 | adjustForeignAttributes(token); |
2784 | m_tree.insertForeignElement(WTFMove(token), currentNamespace); |
2785 | break; |
2786 | } |
2787 | case HTMLToken::EndTag: { |
2788 | if (adjustedCurrentNode.namespaceURI() == SVGNames::svgNamespaceURI) |
2789 | adjustSVGTagNameCase(token); |
2790 | |
2791 | if (token.name() == SVGNames::scriptTag && m_tree.currentStackItem().hasTagName(SVGNames::scriptTag)) { |
2792 | if (scriptingContentIsAllowed(m_tree.parserContentPolicy())) |
2793 | m_scriptToProcess = &downcast<SVGScriptElement>(m_tree.currentElement()); |
2794 | m_tree.openElements().pop(); |
2795 | return; |
2796 | } |
2797 | if (!isInHTMLNamespace(m_tree.currentStackItem())) { |
2798 | // FIXME: This code just wants an Element* iterator, instead of an ElementRecord* |
2799 | auto* nodeRecord = &m_tree.openElements().topRecord(); |
2800 | if (nodeRecord->stackItem().localName() != token.name()) |
2801 | parseError(token); |
2802 | while (1) { |
2803 | if (nodeRecord->stackItem().localName() == token.name()) { |
2804 | m_tree.openElements().popUntilPopped(nodeRecord->element()); |
2805 | return; |
2806 | } |
2807 | nodeRecord = nodeRecord->next(); |
2808 | |
2809 | if (isInHTMLNamespace(nodeRecord->stackItem())) |
2810 | break; |
2811 | } |
2812 | } |
2813 | // Otherwise, process the token according to the rules given in the section corresponding to the current insertion mode in HTML content. |
2814 | processEndTag(WTFMove(token)); |
2815 | break; |
2816 | } |
2817 | case HTMLToken::Comment: |
2818 | m_tree.insertComment(WTFMove(token)); |
2819 | return; |
2820 | case HTMLToken::Character: { |
2821 | String characters = String(token.characters(), token.charactersLength()); |
2822 | m_tree.insertTextNode(characters); |
2823 | if (m_framesetOk && !isAllWhitespaceOrReplacementCharacters(characters)) |
2824 | m_framesetOk = false; |
2825 | break; |
2826 | } |
2827 | case HTMLToken::EndOfFile: |
2828 | ASSERT_NOT_REACHED(); |
2829 | break; |
2830 | } |
2831 | } |
2832 | |
2833 | void HTMLTreeBuilder::finished() |
2834 | { |
2835 | ASSERT(!m_destroyed); |
2836 | |
2837 | if (isParsingFragment()) |
2838 | return; |
2839 | |
2840 | ASSERT(m_templateInsertionModes.isEmpty()); |
2841 | |
2842 | m_tree.finishedParsing(); |
2843 | // The tree builder might have been destroyed as an indirect result of finishing the parsing. |
2844 | } |
2845 | |
2846 | inline void HTMLTreeBuilder::parseError(const AtomicHTMLToken&) |
2847 | { |
2848 | } |
2849 | |
2850 | } |
2851 | |