1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/parser/htmlparser/src/nsExpatDriver.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,141 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef NS_EXPAT_DRIVER__
1.10 +#define NS_EXPAT_DRIVER__
1.11 +
1.12 +#include "expat_config.h"
1.13 +#include "expat.h"
1.14 +#include "nsCOMPtr.h"
1.15 +#include "nsString.h"
1.16 +#include "nsIDTD.h"
1.17 +#include "nsITokenizer.h"
1.18 +#include "nsIInputStream.h"
1.19 +#include "nsIParser.h"
1.20 +#include "nsCycleCollectionParticipant.h"
1.21 +
1.22 +class nsIExpatSink;
1.23 +class nsIExtendedExpatSink;
1.24 +struct nsCatalogData;
1.25 +
1.26 +class nsExpatDriver : public nsIDTD,
1.27 + public nsITokenizer
1.28 +{
1.29 +public:
1.30 + NS_DECL_CYCLE_COLLECTING_ISUPPORTS
1.31 + NS_DECL_NSIDTD
1.32 + NS_DECL_NSITOKENIZER
1.33 + NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsExpatDriver, nsIDTD)
1.34 +
1.35 + nsExpatDriver();
1.36 + virtual ~nsExpatDriver();
1.37 +
1.38 + int HandleExternalEntityRef(const char16_t *aOpenEntityNames,
1.39 + const char16_t *aBase,
1.40 + const char16_t *aSystemId,
1.41 + const char16_t *aPublicId);
1.42 + nsresult HandleStartElement(const char16_t *aName, const char16_t **aAtts);
1.43 + nsresult HandleEndElement(const char16_t *aName);
1.44 + nsresult HandleCharacterData(const char16_t *aCData, const uint32_t aLength);
1.45 + nsresult HandleComment(const char16_t *aName);
1.46 + nsresult HandleProcessingInstruction(const char16_t *aTarget,
1.47 + const char16_t *aData);
1.48 + nsresult HandleXMLDeclaration(const char16_t *aVersion,
1.49 + const char16_t *aEncoding,
1.50 + int32_t aStandalone);
1.51 + nsresult HandleDefault(const char16_t *aData, const uint32_t aLength);
1.52 + nsresult HandleStartCdataSection();
1.53 + nsresult HandleEndCdataSection();
1.54 + nsresult HandleStartDoctypeDecl(const char16_t* aDoctypeName,
1.55 + const char16_t* aSysid,
1.56 + const char16_t* aPubid,
1.57 + bool aHasInternalSubset);
1.58 + nsresult HandleEndDoctypeDecl();
1.59 + nsresult HandleStartNamespaceDecl(const char16_t* aPrefix,
1.60 + const char16_t* aUri);
1.61 + nsresult HandleEndNamespaceDecl(const char16_t* aPrefix);
1.62 + nsresult HandleNotationDecl(const char16_t* aNotationName,
1.63 + const char16_t* aBase,
1.64 + const char16_t* aSysid,
1.65 + const char16_t* aPubid);
1.66 + nsresult HandleUnparsedEntityDecl(const char16_t* aEntityName,
1.67 + const char16_t* aBase,
1.68 + const char16_t* aSysid,
1.69 + const char16_t* aPubid,
1.70 + const char16_t* aNotationName);
1.71 +
1.72 +private:
1.73 + // Load up an external stream to get external entity information
1.74 + nsresult OpenInputStreamFromExternalDTD(const char16_t* aFPIStr,
1.75 + const char16_t* aURLStr,
1.76 + const char16_t* aBaseURL,
1.77 + nsIInputStream** aStream,
1.78 + nsAString& aAbsURL);
1.79 +
1.80 + /**
1.81 + * Pass a buffer to Expat. If Expat is blocked aBuffer should be null and
1.82 + * aLength should be 0. The result of the call will be stored in
1.83 + * mInternalState. Expat will parse as much of the buffer as it can and store
1.84 + * the rest in its internal buffer.
1.85 + *
1.86 + * @param aBuffer the buffer to pass to Expat. May be null.
1.87 + * @param aLength the length of the buffer to pass to Expat (in number of
1.88 + * char16_t's). Must be 0 if aBuffer is null and > 0 if
1.89 + * aBuffer is not null.
1.90 + * @param aIsFinal whether there will definitely not be any more new buffers
1.91 + * passed in to ParseBuffer
1.92 + * @param aConsumed [out] the number of PRUnichars that Expat consumed. This
1.93 + * doesn't include the PRUnichars that Expat stored in
1.94 + * its buffer but didn't parse yet.
1.95 + */
1.96 + void ParseBuffer(const char16_t *aBuffer, uint32_t aLength, bool aIsFinal,
1.97 + uint32_t *aConsumed);
1.98 + nsresult HandleError();
1.99 +
1.100 + void MaybeStopParser(nsresult aState);
1.101 +
1.102 + bool BlockedOrInterrupted()
1.103 + {
1.104 + return mInternalState == NS_ERROR_HTMLPARSER_BLOCK ||
1.105 + mInternalState == NS_ERROR_HTMLPARSER_INTERRUPTED;
1.106 + }
1.107 +
1.108 + XML_Parser mExpatParser;
1.109 + nsString mLastLine;
1.110 + nsString mCDataText;
1.111 + // Various parts of a doctype
1.112 + nsString mDoctypeName;
1.113 + nsString mSystemID;
1.114 + nsString mPublicID;
1.115 + nsString mInternalSubset;
1.116 + bool mInCData;
1.117 + bool mInInternalSubset;
1.118 + bool mInExternalDTD;
1.119 + bool mMadeFinalCallToExpat;
1.120 +
1.121 + // Whether we're sure that we won't be getting more buffers to parse from
1.122 + // Necko
1.123 + bool mIsFinalChunk;
1.124 +
1.125 + nsresult mInternalState;
1.126 +
1.127 + // The length of the data in Expat's buffer (in number of PRUnichars).
1.128 + uint32_t mExpatBuffered;
1.129 +
1.130 + // These sinks all refer the same conceptual object. mOriginalSink is
1.131 + // identical with the nsIContentSink* passed to WillBuildModel, and exists
1.132 + // only to avoid QI-ing back to nsIContentSink*.
1.133 + nsCOMPtr<nsIContentSink> mOriginalSink;
1.134 + nsCOMPtr<nsIExpatSink> mSink;
1.135 + nsCOMPtr<nsIExtendedExpatSink> mExtendedSink;
1.136 +
1.137 + const nsCatalogData* mCatalogData; // weak
1.138 + nsString mURISpec;
1.139 +
1.140 + // Used for error reporting.
1.141 + uint64_t mInnerWindowID;
1.142 +};
1.143 +
1.144 +#endif
