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/*
* Copyright (C) 2013 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 GOOGLE 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 GOOGLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* 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.
*/
#ifndef BackgroundHTMLParser_h
#define BackgroundHTMLParser_h
#include "core/dom/DocumentEncodingData.h"
#include "core/html/parser/BackgroundHTMLInputStream.h"
#include "core/html/parser/CompactHTMLToken.h"
#include "core/html/parser/HTMLParserOptions.h"
#include "core/html/parser/HTMLPreloadScanner.h"
#include "core/html/parser/HTMLSourceTracker.h"
#include "core/html/parser/HTMLTreeBuilderSimulator.h"
#include "core/html/parser/TextResourceDecoder.h"
#include "core/html/parser/XSSAuditorDelegate.h"
#include "wtf/PassOwnPtr.h"
#include "wtf/WeakPtr.h"
namespace WebCore {
class HTMLDocumentParser;
class SharedBuffer;
class XSSAuditor;
class BackgroundHTMLParser {
WTF_MAKE_FAST_ALLOCATED;
public:
struct Configuration {
HTMLParserOptions options;
WeakPtr<HTMLDocumentParser> parser;
OwnPtr<XSSAuditor> xssAuditor;
OwnPtr<TokenPreloadScanner> preloadScanner;
OwnPtr<TextResourceDecoder> decoder;
};
static void start(PassRefPtr<WeakReference<BackgroundHTMLParser> >, PassOwnPtr<Configuration>);
struct Checkpoint {
WeakPtr<HTMLDocumentParser> parser;
OwnPtr<HTMLToken> token;
OwnPtr<HTMLTokenizer> tokenizer;
HTMLTreeBuilderSimulator::State treeBuilderState;
HTMLInputCheckpoint inputCheckpoint;
TokenPreloadScannerCheckpoint preloadScannerCheckpoint;
String unparsedInput;
};
void appendRawBytesFromParserThread(const char* data, int dataLength);
void appendRawBytesFromMainThread(PassOwnPtr<Vector<char> >);
void setDecoder(PassOwnPtr<TextResourceDecoder>);
void flush();
void resumeFrom(PassOwnPtr<Checkpoint>);
void startedChunkWithCheckpoint(HTMLInputCheckpoint);
void finish();
void stop();
void forcePlaintextForTextDocument();
private:
BackgroundHTMLParser(PassRefPtr<WeakReference<BackgroundHTMLParser> >, PassOwnPtr<Configuration>);
~BackgroundHTMLParser();
void appendDecodedBytes(const String&);
void markEndOfFile();
void pumpTokenizer();
void sendTokensToMainThread();
void updateDocument(const String& decodedData);
WeakPtrFactory<BackgroundHTMLParser> m_weakFactory;
BackgroundHTMLInputStream m_input;
HTMLSourceTracker m_sourceTracker;
OwnPtr<HTMLToken> m_token;
OwnPtr<HTMLTokenizer> m_tokenizer;
HTMLTreeBuilderSimulator m_treeBuilderSimulator;
HTMLParserOptions m_options;
WeakPtr<HTMLDocumentParser> m_parser;
OwnPtr<CompactHTMLTokenStream> m_pendingTokens;
PreloadRequestStream m_pendingPreloads;
XSSInfoStream m_pendingXSSInfos;
OwnPtr<XSSAuditor> m_xssAuditor;
OwnPtr<TokenPreloadScanner> m_preloadScanner;
OwnPtr<TextResourceDecoder> m_decoder;
DocumentEncodingData m_lastSeenEncodingData;
};
}
#endif
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