зеркало из https://github.com/mozilla/gecko-dev.git
271 строка
9.3 KiB
C++
271 строка
9.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim: set ts=2 sw=2 et tw=78: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef NS_IPARSER___
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#define NS_IPARSER___
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/**
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* This GECKO-INTERNAL interface is on track to being REMOVED (or refactored
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* to the point of being near-unrecognizable).
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*
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* Please DO NOT #include this file in comm-central code, in your XULRunner
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* app or binary extensions.
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*
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* Please DO NOT #include this into new files even inside Gecko. It is more
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* likely than not that #including this header is the wrong thing to do.
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*/
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#include "nsISupports.h"
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#include "nsIStreamListener.h"
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#include "nsIDTD.h"
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#include "nsString.h"
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#include "nsTArray.h"
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#include "nsIAtom.h"
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#include "nsParserBase.h"
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#define NS_IPARSER_IID \
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{ 0x2c4ad90a, 0x740e, 0x4212, \
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{ 0xba, 0x3f, 0xfe, 0xac, 0xda, 0x4b, 0x92, 0x9e } }
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// {41421C60-310A-11d4-816F-000064657374}
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#define NS_IDEBUG_DUMP_CONTENT_IID \
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{ 0x41421c60, 0x310a, 0x11d4, \
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{ 0x81, 0x6f, 0x0, 0x0, 0x64, 0x65, 0x73, 0x74 } }
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class nsIContentSink;
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class nsIRequestObserver;
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class nsString;
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class nsIURI;
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class nsIChannel;
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class nsIContent;
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enum eParserCommands {
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eViewNormal,
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eViewSource,
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eViewFragment,
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eViewErrors
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};
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enum eParserDocType {
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ePlainText = 0,
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eXML,
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eHTML_Quirks,
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eHTML_Strict
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};
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enum eStreamState {eNone,eOnStart,eOnDataAvail,eOnStop};
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/**
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* This GECKO-INTERNAL interface is on track to being REMOVED (or refactored
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* to the point of being near-unrecognizable).
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*
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* Please DO NOT #include this file in comm-central code, in your XULRunner
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* app or binary extensions.
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*
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* Please DO NOT #include this into new files even inside Gecko. It is more
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* likely than not that #including this header is the wrong thing to do.
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*/
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class nsIParser : public nsParserBase {
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_IPARSER_IID)
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/**
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* Select given content sink into parser for parser output
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* @update gess5/11/98
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* @param aSink is the new sink to be used by parser
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* @return
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*/
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NS_IMETHOD_(void) SetContentSink(nsIContentSink* aSink)=0;
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/**
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* retrieve the sink set into the parser
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* @update gess5/11/98
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* @return current sink
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*/
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NS_IMETHOD_(nsIContentSink*) GetContentSink(void)=0;
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/**
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* Call this method once you've created a parser, and want to instruct it
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* about the command which caused the parser to be constructed. For example,
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* this allows us to select a DTD which can do, say, view-source.
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*
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* @update gess 3/25/98
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* @param aCommand -- ptrs to string that contains command
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* @return nada
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*/
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NS_IMETHOD_(void) GetCommand(nsCString& aCommand)=0;
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NS_IMETHOD_(void) SetCommand(const char* aCommand)=0;
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NS_IMETHOD_(void) SetCommand(eParserCommands aParserCommand)=0;
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/**
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* Call this method once you've created a parser, and want to instruct it
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* about what charset to load
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*
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* @update ftang 4/23/99
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* @param aCharset- the charest of a document
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* @param aCharsetSource- the soure of the chares
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* @return nada
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*/
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NS_IMETHOD_(void) SetDocumentCharset(const nsACString& aCharset, int32_t aSource)=0;
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NS_IMETHOD_(void) GetDocumentCharset(nsACString& oCharset, int32_t& oSource)=0;
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/**
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* Get the channel associated with this parser
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* @update harishd,gagan 07/17/01
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* @param aChannel out param that will contain the result
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* @return NS_OK if successful
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*/
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NS_IMETHOD GetChannel(nsIChannel** aChannel) = 0;
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/**
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* Get the DTD associated with this parser
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* @update vidur 9/29/99
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* @param aDTD out param that will contain the result
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* @return NS_OK if successful, NS_ERROR_FAILURE for runtime error
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*/
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NS_IMETHOD GetDTD(nsIDTD** aDTD) = 0;
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/**
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* Get the nsIStreamListener for this parser
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*/
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virtual nsIStreamListener* GetStreamListener() = 0;
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/**************************************************************************
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* Parse methods always begin with an input source, and perform
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* conversions until you wind up being emitted to the given contentsink
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* (which may or may not be a proxy for the NGLayout content model).
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************************************************************************/
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// Call this method to resume the parser from an unblocked state.
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// This can happen, for example, if parsing was interrupted and then the
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// consumer needed to restart the parser without waiting for more data.
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// This also happens after loading scripts, which unblock the parser in
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// order to process the output of document.write() and then need to
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// continue on with the page load on an enabled parser.
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NS_IMETHOD ContinueInterruptedParsing() = 0;
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// Stops parsing temporarily.
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NS_IMETHOD_(void) BlockParser() = 0;
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// Open up the parser for tokenization, building up content
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// model..etc. However, this method does not resume parsing
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// automatically. It's the callers' responsibility to restart
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// the parsing engine.
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NS_IMETHOD_(void) UnblockParser() = 0;
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/**
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* Asynchronously continues parsing.
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*/
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NS_IMETHOD_(void) ContinueInterruptedParsingAsync() = 0;
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NS_IMETHOD_(bool) IsParserEnabled() = 0;
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NS_IMETHOD_(bool) IsComplete() = 0;
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NS_IMETHOD Parse(nsIURI* aURL,
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nsIRequestObserver* aListener = nullptr,
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void* aKey = 0,
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nsDTDMode aMode = eDTDMode_autodetect) = 0;
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NS_IMETHOD Terminate(void) = 0;
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/**
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* This method gets called when you want to parse a fragment of HTML or XML
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* surrounded by the context |aTagStack|. It requires that the parser have
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* been given a fragment content sink.
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*
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* @param aSourceBuffer The XML or HTML that hasn't been parsed yet.
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* @param aTagStack The context of the source buffer.
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* @return Success or failure.
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*/
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NS_IMETHOD ParseFragment(const nsAString& aSourceBuffer,
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nsTArray<nsString>& aTagStack) = 0;
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/**
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* This method gets called when the tokens have been consumed, and it's time
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* to build the model via the content sink.
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* @update gess5/11/98
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* @return error code -- 0 if model building went well .
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*/
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NS_IMETHOD BuildModel(void) = 0;
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/**
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* Call this method to cancel any pending parsing events.
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* Parsing events may be pending if all of the document's content
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* has been passed to the parser but the parser has been interrupted
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* because processing the tokens took too long.
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*
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* @update kmcclusk 05/18/01
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* @return NS_OK if succeeded else ERROR.
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*/
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NS_IMETHOD CancelParsingEvents() = 0;
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virtual void Reset() = 0;
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/**
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* True if the insertion point (per HTML5) is defined.
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*/
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virtual bool IsInsertionPointDefined() = 0;
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/**
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* Call immediately before starting to evaluate a parser-inserted script.
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*/
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virtual void BeginEvaluatingParserInsertedScript() = 0;
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/**
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* Call immediately after having evaluated a parser-inserted script.
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*/
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virtual void EndEvaluatingParserInsertedScript() = 0;
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/**
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* Marks the HTML5 parser as not a script-created parser.
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*/
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virtual void MarkAsNotScriptCreated(const char* aCommand) = 0;
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/**
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* True if this is a script-created HTML5 parser.
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*/
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virtual bool IsScriptCreated() = 0;
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsIParser, NS_IPARSER_IID)
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/* ===========================================================*
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Some useful constants...
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* ===========================================================*/
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#include "nsError.h"
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const nsresult kEOF = NS_ERROR_HTMLPARSER_EOF;
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const nsresult kUnknownError = NS_ERROR_HTMLPARSER_UNKNOWN;
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const nsresult kCantPropagate = NS_ERROR_HTMLPARSER_CANTPROPAGATE;
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const nsresult kContextMismatch = NS_ERROR_HTMLPARSER_CONTEXTMISMATCH;
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const nsresult kBadFilename = NS_ERROR_HTMLPARSER_BADFILENAME;
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const nsresult kBadURL = NS_ERROR_HTMLPARSER_BADURL;
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const nsresult kInvalidParserContext = NS_ERROR_HTMLPARSER_INVALIDPARSERCONTEXT;
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const nsresult kBlocked = NS_ERROR_HTMLPARSER_BLOCK;
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const nsresult kBadStringLiteral = NS_ERROR_HTMLPARSER_UNTERMINATEDSTRINGLITERAL;
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const nsresult kHierarchyTooDeep = NS_ERROR_HTMLPARSER_HIERARCHYTOODEEP;
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const nsresult kFakeEndTag = NS_ERROR_HTMLPARSER_FAKE_ENDTAG;
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const nsresult kNotAComment = NS_ERROR_HTMLPARSER_INVALID_COMMENT;
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#define NS_IPARSER_FLAG_UNKNOWN_MODE 0x00000000
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#define NS_IPARSER_FLAG_QUIRKS_MODE 0x00000002
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#define NS_IPARSER_FLAG_STRICT_MODE 0x00000004
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#define NS_IPARSER_FLAG_AUTO_DETECT_MODE 0x00000010
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#define NS_IPARSER_FLAG_VIEW_NORMAL 0x00000020
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#define NS_IPARSER_FLAG_VIEW_SOURCE 0x00000040
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#define NS_IPARSER_FLAG_VIEW_ERRORS 0x00000080
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#define NS_IPARSER_FLAG_PLAIN_TEXT 0x00000100
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#define NS_IPARSER_FLAG_XML 0x00000200
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#define NS_IPARSER_FLAG_HTML 0x00000400
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#define NS_IPARSER_FLAG_SCRIPT_ENABLED 0x00000800
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#define NS_IPARSER_FLAG_FRAMES_ENABLED 0x00001000
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#endif
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