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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "TextDocumentParser.h"
#include "HTMLTreeBuilder.h"
#include "ScriptElement.h"
namespace WebCore {
using namespace HTMLNames;
TextDocumentParser::TextDocumentParser(HTMLDocument& document)
: HTMLDocumentParser(document)
{
}
void TextDocumentParser::append(RefPtr<StringImpl>&& text)
{
if (!m_hasInsertedFakeFormattingElements)
insertFakeFormattingElements();
HTMLDocumentParser::append(WTFMove(text));
}
void TextDocumentParser::insertFakeFormattingElements()
{
// In principle, we should create a specialized tree builder for
// TextDocuments, but instead we re-use the existing HTMLTreeBuilder.
// We create fake tokens and give it to the tree builder rather than
// sending fake bytes through the front-end of the parser to avoid
// distrubing the line/column number calculations.
Attribute nameAttribute(nameAttr, "color-scheme"_s);
Attribute contentAttribute(contentAttr, "light dark"_s);
AtomHTMLToken fakeMeta(HTMLToken::Type::StartTag, TagName::meta, { WTFMove(nameAttribute), WTFMove(contentAttribute) });
treeBuilder().constructTree(WTFMove(fakeMeta));
Attribute attribute(styleAttr, "word-wrap: break-word; white-space: pre-wrap;"_s);
AtomHTMLToken fakePre(HTMLToken::Type::StartTag, TagName::pre, { WTFMove(attribute) });
treeBuilder().constructTree(WTFMove(fakePre));
// Normally we would skip the first \n after a <pre> element, but we don't
// want to skip the first \n for text documents!
treeBuilder().setShouldSkipLeadingNewline(false);
// Although Text Documents expose a "pre" element in their DOM, they
// act like a <plaintext> tag, so we have to force plaintext mode.
tokenizer().setPLAINTEXTState();
m_hasInsertedFakeFormattingElements = true;
}
}
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