зеркало из https://github.com/mozilla/pjs.git
203 строки
6.5 KiB
C++
203 строки
6.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsIContentSink_h___
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#define nsIContentSink_h___
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/**
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* MODULE NOTES:
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* @update gess 4/1/98
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*
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* This pure virtual interface is used as the "glue" that connects the parsing
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* process to the content model construction process.
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*
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* The icontentsink interface is a very lightweight wrapper that represents the
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* content-sink model building process. There is another one that you may care
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* about more, which is the IHTMLContentSink interface. (See that file for details).
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*/
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#include "nsIParserNode.h"
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#include "nsISupports.h"
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#include "nsParserError.h"
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class nsIParser;
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#define NS_ICONTENT_SINK_IID \
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{ 0xa6cf9052, 0x15b3, 0x11d2,{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}}
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// The base value for the content ID counter.
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// Values greater than or equal to this base value are used
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// by each of the content sinks to assign unique values
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// to the content objects created by them.
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#define NS_CONTENT_ID_COUNTER_BASE 10000
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class nsIContentSink : public nsISupports {
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public:
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NS_DEFINE_STATIC_IID_ACCESSOR(NS_ICONTENT_SINK_IID)
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/**
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* This method gets called when the parser begins the process
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* of building the content model via the content sink.
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*
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* @update 5/7/98 gess
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*/
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NS_IMETHOD WillBuildModel(void)=0;
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/**
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* This method gets called when the parser concludes the process
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* of building the content model via the content sink.
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*
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* @param aQualityLevel describes how well formed the doc was.
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* 0=GOOD; 1=FAIR; 2=POOR;
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* @update 5/7/98 gess
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*/
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NS_IMETHOD DidBuildModel(PRInt32 aQualityLevel)=0;
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/**
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* This method gets called when the parser gets i/o blocked,
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* and wants to notify the sink that it may be a while before
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* more data is available.
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*
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* @update 5/7/98 gess
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*/
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NS_IMETHOD WillInterrupt(void)=0;
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/**
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* This method gets called when the parser i/o gets unblocked,
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* and we're about to start dumping content again to the sink.
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*
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* @update 5/7/98 gess
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*/
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NS_IMETHOD WillResume(void)=0;
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/**
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* This method gets called by the parser so that the content
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* sink can retain a reference to the parser. The expectation
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* is that the content sink will drop the reference when it
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* gets the DidBuildModel notification i.e. when parsing is done.
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*/
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NS_IMETHOD SetParser(nsIParser* aParser)=0;
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/**
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* This method is used to open a generic container in the sink.
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*
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* @update 4/1/98 gess
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* @param nsIParserNode reference to parser node interface
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*/
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NS_IMETHOD OpenContainer(const nsIParserNode& aNode) = 0;
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/**
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* This method gets called by the parser when a close
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* container tag has been consumed and needs to be closed.
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*
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* @update 4/1/98 gess
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* @param nsIParserNode reference to parser node interface
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*/
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NS_IMETHOD CloseContainer(const nsIParserNode& aNode) = 0;
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/**
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* This gets called by the parser when you want to add
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* a leaf node to the current container in the content
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* model.
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*
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* @update 4/1/98 gess
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* @param nsIParserNode reference to parser node interface
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*/
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NS_IMETHOD AddLeaf(const nsIParserNode& aNode) = 0;
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/**
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* This gets called by the parser when you want to add
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* a leaf node to the current container in the content
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* model.
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*
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* @update 4/1/98 gess
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* @param nsIParserNode reference to parser node interface
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*/
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NS_IMETHOD AddComment(const nsIParserNode& aNode) = 0;
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/**
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* This gets called by the parser when you want to add
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* a leaf node to the current container in the content
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* model.
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*
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* @update 4/1/98 gess
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* @param nsIParserNode reference to parser node interface
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*/
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NS_IMETHOD AddProcessingInstruction(const nsIParserNode& aNode) = 0;
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/**
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* This method is called by the parser when it encounters
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* a document type declaration.
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*
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* XXX Should the parser also part the internal subset?
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*
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* @param nsIParserNode reference to parser node interface
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*/
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NS_IMETHOD AddDocTypeDecl(const nsIParserNode& aNode, PRInt32 aMode)=0;
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/**
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* This gets called by the parser if it hits an unrecoverable
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* error (in XML, if the document is not well-formed or valid).
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*
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* @param aErrorResult the error code
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*/
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NS_IMETHOD NotifyError(const nsParserError* aError)=0;
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/**
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* This gets called by the parser to notify observers of
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* the tag
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*
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* @param aErrorResult the error code
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*/
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NS_IMETHOD NotifyTagObservers(nsIParserNode* aNode)=0;
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/**
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* Flush all pending notifications so that the content model
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* is in sync with the state of the sink.
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*/
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NS_IMETHOD FlushPendingNotifications()=0;
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/**
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* Set the document character set. This should be passed on to the
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* document itself.
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*/
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NS_IMETHOD SetDocumentCharset(nsAWritableString& aCharset)=0;
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};
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#endif /* nsIContentSink_h___ */
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