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Side by Side Diff: sky/engine/core/html/parser/BackgroundHTMLParser.h

Issue 1215103007: Remove remaining HTML elements (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 5 months ago
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1 /*
2 * Copyright (C) 2013 Google, Inc. All Rights Reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
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.
12 *
13 * THIS SOFTWARE IS PROVIDED BY GOOGLE 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 GOOGLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #ifndef SKY_ENGINE_CORE_HTML_PARSER_BACKGROUNDHTMLPARSER_H_
27 #define SKY_ENGINE_CORE_HTML_PARSER_BACKGROUNDHTMLPARSER_H_
28
29 #include "base/memory/weak_ptr.h"
30 #include "mojo/common/data_pipe_drainer.h"
31 #include "mojo/public/cpp/system/core.h"
32 #include "sky/engine/core/html/parser/CompactHTMLToken.h"
33 #include "sky/engine/core/html/parser/HTMLTokenizer.h"
34 #include "sky/engine/core/html/parser/TextResourceDecoder.h"
35 #include "sky/engine/platform/text/SegmentedString.h"
36 #include "sky/engine/wtf/PassOwnPtr.h"
37 #include "sky/engine/wtf/WeakPtr.h"
38
39 namespace blink {
40
41 class HTMLDocumentParser;
42 class SharedBuffer;
43
44 class BackgroundHTMLParser : public mojo::common::DataPipeDrainer::Client {
45 WTF_MAKE_FAST_ALLOCATED;
46 public:
47 struct Configuration {
48 mojo::ScopedDataPipeConsumerHandle source;
49 base::WeakPtr<HTMLDocumentParser> parser;
50 };
51
52 static base::WeakPtr<BackgroundHTMLParser> create(PassOwnPtr<Configuration>) ;
53
54 void start();
55 void stop();
56
57 private:
58 explicit BackgroundHTMLParser(PassOwnPtr<Configuration>);
59 ~BackgroundHTMLParser();
60
61 // DataPipeDrainer::Client:
62 void OnDataAvailable(const void* data, size_t numberOfBytes) override;
63 void OnDataComplete() override;
64
65 void finish();
66 void markEndOfFile();
67 void pumpTokenizer();
68 void sendTokensToMainThread();
69
70 enum ContinueBehavior {
71 ContinueParsing,
72 SendTokensIncludingLast,
73 SendTokensExceptingLast,
74 };
75
76 ContinueBehavior updateTokenizerState(const CompactHTMLToken& token);
77
78 enum State {
79 InitialState,
80 DidSeeImportState,
81 };
82
83 State m_state;
84 SegmentedString m_input;
85 OwnPtr<HTMLToken> m_token;
86 OwnPtr<HTMLTokenizer> m_tokenizer;
87 base::WeakPtr<HTMLDocumentParser> m_parser;
88
89 OwnPtr<CompactHTMLTokenStream> m_pendingTokens;
90 OwnPtr<TextResourceDecoder> m_decoder;
91
92 mojo::ScopedDataPipeConsumerHandle m_source;
93 OwnPtr<mojo::common::DataPipeDrainer> m_drainer;
94
95 base::WeakPtrFactory<BackgroundHTMLParser> m_weakFactory;
96 };
97
98 }
99
100 #endif // SKY_ENGINE_CORE_HTML_PARSER_BACKGROUNDHTMLPARSER_H_
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