PassRefPtr<DocumentFragment> WebVTTParser::createDocumentFragmentFromCueText(const String& text)
{
// Cue text processing based on
// 4.8.10.13.4 WebVTT cue text parsing rules and
// 4.8.10.13.5 WebVTT cue text DOM construction rules.
ASSERT(m_scriptExecutionContext->isDocument());
Document* document = toDocument(m_scriptExecutionContext);
ASSERT(document);
RefPtr<DocumentFragment> fragment = DocumentFragment::create(*document);
if (!text.length()) {
fragment->parserAppendChild(Text::create(*document, ""));
return fragment;
}
m_currentNode = fragment;
m_tokenizer->reset();
m_token.clear();
m_languageStack.clear();
SegmentedString content(text);
while (m_tokenizer->nextToken(content, m_token))
constructTreeFromToken(*document);
return fragment.release();
}
void WebVTTParser::processCueText()
{
// 51 - Cue text processing based on
// 4.8.10.13.4 WebVTT cue text parsing rules and
// 4.8.10.13.5 WebVTT cue text DOM construction rules.
if (m_currentContent.length() <= 0)
return;
ASSERT(m_scriptExecutionContext->isDocument());
Document* document = static_cast<Document*>(m_scriptExecutionContext);
m_attachmentRoot = DocumentFragment::create(document);
m_currentNode = m_attachmentRoot;
m_tokenizer->reset();
m_token.clear();
SegmentedString content(m_currentContent.toString());
while (m_tokenizer->nextToken(content, m_token))
constructTreeFromToken(document);
RefPtr<TextTrackCue> cue = TextTrackCue::create(m_scriptExecutionContext, m_currentId, m_currentStartTime, m_currentEndTime, m_currentContent.toString(), m_currentSettings, false);
cue->setCueHTML(m_attachmentRoot);
m_cuelist.append(cue);
m_client->newCuesParsed();
}
PassRefPtr<DocumentFragment> WebVTTTreeBuilder::buildFromString(const String& cueText)
{
// Cue text processing based on
// 5.4 WebVTT cue text parsing rules, and
// 5.5 WebVTT cue text DOM construction rules.
RefPtr<DocumentFragment> fragment = DocumentFragment::create(m_document);
if (cueText.isEmpty()) {
fragment->parserAppendChild(Text::create(m_document, emptyString()));
return fragment.release();
}
m_currentNode = fragment;
WebVTTTokenizer tokenizer(cueText);
m_languageStack.clear();
while (tokenizer.nextToken(m_token))
constructTreeFromToken(m_document);
return fragment.release();
}
PassRefPtr<DocumentFragment> WebVTTParser::createDocumentFragmentFromCueText(const String& text)
{
// Cue text processing based on
// 4.8.10.13.4 WebVTT cue text parsing rules and
// 4.8.10.13.5 WebVTT cue text DOM construction rules.
if (!text.length())
return 0;
ASSERT(m_scriptExecutionContext->isDocument());
Document* document = static_cast<Document*>(m_scriptExecutionContext);
RefPtr<DocumentFragment> fragment = DocumentFragment::create(document);
m_currentNode = fragment;
m_tokenizer->reset();
m_token.clear();
SegmentedString content(text);
while (m_tokenizer->nextToken(content, m_token))
constructTreeFromToken(document);
return fragment.release();
}