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1 /* | 1 /* |
2 * Copyright (C) 2010 Google Inc. All rights reserved. | 2 * Copyright (C) 2010 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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40 TextDocumentParser::~TextDocumentParser() {} | 40 TextDocumentParser::~TextDocumentParser() {} |
41 | 41 |
42 void TextDocumentParser::appendBytes(const char* data, size_t length) { | 42 void TextDocumentParser::appendBytes(const char* data, size_t length) { |
43 if (!m_haveInsertedFakePreElement) | 43 if (!m_haveInsertedFakePreElement) |
44 insertFakePreElement(); | 44 insertFakePreElement(); |
45 HTMLDocumentParser::appendBytes(data, length); | 45 HTMLDocumentParser::appendBytes(data, length); |
46 } | 46 } |
47 | 47 |
48 void TextDocumentParser::insertFakePreElement() { | 48 void TextDocumentParser::insertFakePreElement() { |
49 // In principle, we should create a specialized tree builder for | 49 // In principle, we should create a specialized tree builder for |
50 // TextDocuments, but instead we re-use the existing HTMLTreeBuilder. | 50 // TextDocuments, but instead we re-use the existing HTMLTreeBuilder. We |
51 // We create a fake token and give it to the tree builder rather than | 51 // create a fake token and give it to the tree builder rather than sending |
52 // sending fake bytes through the front-end of the parser to avoid | 52 // fake bytes through the front-end of the parser to avoid distrubing the |
53 // distrubing the line/column number calculations. | 53 // line/column number calculations. |
54 Vector<Attribute> attributes; | 54 Vector<Attribute> attributes; |
55 attributes.append( | 55 attributes.append( |
56 Attribute(styleAttr, "word-wrap: break-word; white-space: pre-wrap;")); | 56 Attribute(styleAttr, "word-wrap: break-word; white-space: pre-wrap;")); |
57 AtomicHTMLToken fakePre(HTMLToken::StartTag, preTag.localName(), attributes); | 57 AtomicHTMLToken fakePre(HTMLToken::StartTag, preTag.localName(), attributes); |
58 treeBuilder()->constructTree(&fakePre); | 58 treeBuilder()->constructTree(&fakePre); |
| 59 |
| 60 // The document could have been detached by an extension while the |
| 61 // tree was being constructed. |
59 if (isStopped()) | 62 if (isStopped()) |
60 return; // The document could have been detached by an extension while the
tree was being constructed. | 63 return; |
61 | 64 |
62 // Normally we would skip the first \n after a <pre> element, but we don't | 65 // Normally we would skip the first \n after a <pre> element, but we don't |
63 // want to skip the first \n for text documents! | 66 // want to skip the first \n for text documents! |
64 treeBuilder()->setShouldSkipLeadingNewline(false); | 67 treeBuilder()->setShouldSkipLeadingNewline(false); |
65 | 68 |
66 // Although Text Documents expose a "pre" element in their DOM, they | 69 // Although Text Documents expose a "pre" element in their DOM, they |
67 // act like a <plaintext> tag, so we have to force plaintext mode. | 70 // act like a <plaintext> tag, so we have to force plaintext mode. |
68 forcePlaintextForTextDocument(); | 71 forcePlaintextForTextDocument(); |
69 | 72 |
70 m_haveInsertedFakePreElement = true; | 73 m_haveInsertedFakePreElement = true; |
71 } | 74 } |
72 | 75 |
73 } // namespace blink | 76 } // namespace blink |
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