2 * Copyright (C) 2010 Google Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
20 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
22 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 #include "core/html/parser/TextDocumentParser.h"
28 #include "HTMLNames.h"
29 #include "core/html/parser/HTMLTreeBuilder.h"
33 using namespace HTMLNames;
35 TextDocumentParser::TextDocumentParser(HTMLDocument* document)
36 : HTMLDocumentParser(document, false)
37 , m_haveInsertedFakePreElement(false)
41 TextDocumentParser::~TextDocumentParser()
45 void TextDocumentParser::appendBytes(const char* data, size_t length)
47 if (!m_haveInsertedFakePreElement)
48 insertFakePreElement();
49 HTMLDocumentParser::appendBytes(data, length);
52 void TextDocumentParser::insertFakePreElement()
54 // In principle, we should create a specialized tree builder for
55 // TextDocuments, but instead we re-use the existing HTMLTreeBuilder.
56 // We create a fake token and give it to the tree builder rather than
57 // sending fake bytes through the front-end of the parser to avoid
58 // distrubing the line/column number calculations.
59 Vector<Attribute> attributes;
60 attributes.append(Attribute(styleAttr, "word-wrap: break-word; white-space: pre-wrap;"));
61 AtomicHTMLToken fakePre(HTMLToken::StartTag, preTag.localName(), attributes);
62 treeBuilder()->constructTree(&fakePre);
64 // Normally we would skip the first \n after a <pre> element, but we don't
65 // want to skip the first \n for text documents!
66 treeBuilder()->setShouldSkipLeadingNewline(false);
68 // Although Text Documents expose a "pre" element in their DOM, they
69 // act like a <plaintext> tag, so we have to force plaintext mode.
70 forcePlaintextForTextDocument();
72 m_haveInsertedFakePreElement = true;