зеркало из https://github.com/mozilla/pjs.git
399 строки
11 KiB
C++
399 строки
11 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Henri Sivonen <hsivonen@iki.fi>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#ifndef NS_HTML5_PARSER__
|
|
#define NS_HTML5_PARSER__
|
|
|
|
#include "nsAutoPtr.h"
|
|
#include "nsIParser.h"
|
|
#include "nsDeque.h"
|
|
#include "nsIURL.h"
|
|
#include "nsParserCIID.h"
|
|
#include "nsITokenizer.h"
|
|
#include "nsThreadUtils.h"
|
|
#include "nsIContentSink.h"
|
|
#include "nsIParserFilter.h"
|
|
#include "nsIRequest.h"
|
|
#include "nsIChannel.h"
|
|
#include "nsCOMArray.h"
|
|
#include "nsContentSink.h"
|
|
#include "nsIHTMLDocument.h"
|
|
#include "nsIUnicharStreamListener.h"
|
|
#include "nsCycleCollectionParticipant.h"
|
|
#include "nsIInputStream.h"
|
|
#include "nsDetectionConfident.h"
|
|
#include "nsHtml5UTF16Buffer.h"
|
|
#include "nsHtml5TreeOpExecutor.h"
|
|
#include "nsHtml5StreamParser.h"
|
|
#include "nsHtml5AtomTable.h"
|
|
#include "nsWeakReference.h"
|
|
|
|
class nsHtml5Parser : public nsIParser,
|
|
public nsSupportsWeakReference
|
|
{
|
|
public:
|
|
NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW
|
|
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
|
|
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsHtml5Parser, nsIParser)
|
|
|
|
nsHtml5Parser();
|
|
virtual ~nsHtml5Parser();
|
|
|
|
/* Start nsIParser */
|
|
/**
|
|
* No-op for backwards compat.
|
|
*/
|
|
NS_IMETHOD_(void) SetContentSink(nsIContentSink* aSink);
|
|
|
|
/**
|
|
* Returns the tree op executor for backwards compat.
|
|
*/
|
|
NS_IMETHOD_(nsIContentSink*) GetContentSink();
|
|
|
|
/**
|
|
* Always returns "view" for backwards compat.
|
|
*/
|
|
NS_IMETHOD_(void) GetCommand(nsCString& aCommand);
|
|
|
|
/**
|
|
* No-op for backwards compat.
|
|
*/
|
|
NS_IMETHOD_(void) SetCommand(const char* aCommand);
|
|
|
|
/**
|
|
* No-op for backwards compat.
|
|
*/
|
|
NS_IMETHOD_(void) SetCommand(eParserCommands aParserCommand);
|
|
|
|
/**
|
|
* Call this method once you've created a parser, and want to instruct it
|
|
* about what charset to load
|
|
*
|
|
* @param aCharset the charset of a document
|
|
* @param aCharsetSource the source of the charset
|
|
*/
|
|
NS_IMETHOD_(void) SetDocumentCharset(const nsACString& aCharset, PRInt32 aSource);
|
|
|
|
/**
|
|
* Don't call. For interface compat only.
|
|
*/
|
|
NS_IMETHOD_(void) GetDocumentCharset(nsACString& aCharset, PRInt32& aSource)
|
|
{
|
|
NS_NOTREACHED("No one should call this.");
|
|
}
|
|
|
|
/**
|
|
* No-op for backwards compat.
|
|
*/
|
|
NS_IMETHOD_(void) SetParserFilter(nsIParserFilter* aFilter);
|
|
|
|
/**
|
|
* Get the channel associated with this parser
|
|
* @param aChannel out param that will contain the result
|
|
* @return NS_OK if successful or NS_NOT_AVAILABLE if not
|
|
*/
|
|
NS_IMETHOD GetChannel(nsIChannel** aChannel);
|
|
|
|
/**
|
|
* Return |this| for backwards compat.
|
|
*/
|
|
NS_IMETHOD GetDTD(nsIDTD** aDTD);
|
|
|
|
/**
|
|
* Get the stream parser for this parser
|
|
*/
|
|
NS_IMETHOD GetStreamListener(nsIStreamListener** aListener);
|
|
|
|
/**
|
|
* Don't call. For interface compat only.
|
|
*/
|
|
NS_IMETHOD ContinueInterruptedParsing();
|
|
|
|
/**
|
|
* Blocks the parser.
|
|
*/
|
|
NS_IMETHOD_(void) BlockParser();
|
|
|
|
/**
|
|
* Unblocks the parser.
|
|
*/
|
|
NS_IMETHOD_(void) UnblockParser();
|
|
|
|
/**
|
|
* Query whether the parser is enabled (i.e. not blocked) or not.
|
|
*/
|
|
NS_IMETHOD_(PRBool) IsParserEnabled();
|
|
|
|
/**
|
|
* Query whether the parser thinks it's done with parsing.
|
|
*/
|
|
NS_IMETHOD_(PRBool) IsComplete();
|
|
|
|
/**
|
|
* Set up request observer.
|
|
*
|
|
* @param aURL ignored (for interface compat only)
|
|
* @param aListener a listener to forward notifications to
|
|
* @param aKey the root context key (used for document.write)
|
|
* @param aMode ignored (for interface compat only)
|
|
*/
|
|
NS_IMETHOD Parse(nsIURI* aURL,
|
|
nsIRequestObserver* aListener = nsnull,
|
|
void* aKey = 0,
|
|
nsDTDMode aMode = eDTDMode_autodetect);
|
|
|
|
/**
|
|
* document.write and document.close
|
|
*
|
|
* @param aSourceBuffer the argument of document.write (empty for .close())
|
|
* @param aKey a key unique to the script element that caused this call
|
|
* @param aContentType ignored (for interface compat only)
|
|
* @param aLastCall true if .close() false if .write()
|
|
* @param aMode ignored (for interface compat only)
|
|
*/
|
|
NS_IMETHOD Parse(const nsAString& aSourceBuffer,
|
|
void* aKey,
|
|
const nsACString& aContentType,
|
|
PRBool aLastCall,
|
|
nsDTDMode aMode = eDTDMode_autodetect);
|
|
|
|
/**
|
|
* Gets the key passed to initial Parse()
|
|
*/
|
|
NS_IMETHOD_(void *) GetRootContextKey();
|
|
|
|
/**
|
|
* Stops the parser prematurely
|
|
*/
|
|
NS_IMETHOD Terminate();
|
|
|
|
/**
|
|
* Don't call. For interface backwards compat only.
|
|
*/
|
|
NS_IMETHOD ParseFragment(const nsAString& aSourceBuffer,
|
|
void* aKey,
|
|
nsTArray<nsString>& aTagStack,
|
|
PRBool aXMLMode,
|
|
const nsACString& aContentType,
|
|
nsDTDMode aMode = eDTDMode_autodetect);
|
|
|
|
/**
|
|
* Invoke the fragment parsing algorithm (innerHTML).
|
|
*
|
|
* @param aSourceBuffer the string being set as innerHTML
|
|
* @param aTargetNode the target container
|
|
* @param aContextLocalName local name of context node
|
|
* @param aContextNamespace namespace of context node
|
|
* @param aQuirks true to make <table> not close <p>
|
|
*/
|
|
NS_IMETHOD ParseFragment(const nsAString& aSourceBuffer,
|
|
nsIContent* aTargetNode,
|
|
nsIAtom* aContextLocalName,
|
|
PRInt32 aContextNamespace,
|
|
PRBool aQuirks);
|
|
|
|
/**
|
|
* Don't call. For interface compat only.
|
|
*/
|
|
NS_IMETHOD BuildModel();
|
|
|
|
/**
|
|
* Don't call. For interface compat only.
|
|
*/
|
|
NS_IMETHODIMP CancelParsingEvents();
|
|
|
|
/**
|
|
* Sets the state to initial values
|
|
*/
|
|
virtual void Reset();
|
|
|
|
/**
|
|
* True in fragment mode and during synchronous document.write
|
|
*/
|
|
virtual PRBool CanInterrupt();
|
|
|
|
/**
|
|
* True if the insertion point (per HTML5) is defined.
|
|
*/
|
|
virtual PRBool IsInsertionPointDefined();
|
|
|
|
/**
|
|
* Call immediately before starting to evaluate a parser-inserted script.
|
|
*/
|
|
virtual void BeginEvaluatingParserInsertedScript();
|
|
|
|
/**
|
|
* Call immediately after having evaluated a parser-inserted script.
|
|
*/
|
|
virtual void EndEvaluatingParserInsertedScript();
|
|
|
|
/**
|
|
* Marks the HTML5 parser as not a script-created parser: Prepares the
|
|
* parser to be able to read a stream.
|
|
*/
|
|
virtual void MarkAsNotScriptCreated();
|
|
|
|
/**
|
|
* True if this is a script-created HTML5 parser.
|
|
*/
|
|
virtual PRBool IsScriptCreated();
|
|
|
|
/* End nsIParser */
|
|
|
|
// Not from an external interface
|
|
// Non-inherited methods
|
|
|
|
public:
|
|
|
|
/**
|
|
* Initializes the parser to load from a channel.
|
|
*/
|
|
virtual nsresult Initialize(nsIDocument* aDoc,
|
|
nsIURI* aURI,
|
|
nsISupports* aContainer,
|
|
nsIChannel* aChannel);
|
|
|
|
inline nsHtml5Tokenizer* GetTokenizer() {
|
|
return mTokenizer;
|
|
}
|
|
|
|
void InitializeDocWriteParserState(nsAHtml5TreeBuilderState* aState, PRInt32 aLine);
|
|
|
|
void DropStreamParser() {
|
|
if (mStreamParser) {
|
|
mStreamParser->DropTimer();
|
|
mStreamParser = nsnull;
|
|
}
|
|
}
|
|
|
|
void StartTokenizer(PRBool aScriptingEnabled);
|
|
|
|
void ContinueAfterFailedCharsetSwitch();
|
|
|
|
nsHtml5StreamParser* GetStreamParser() {
|
|
return mStreamParser;
|
|
}
|
|
|
|
/**
|
|
* Parse until pending data is exhausted or a script blocks the parser
|
|
*/
|
|
void ParseUntilBlocked();
|
|
|
|
private:
|
|
|
|
// State variables
|
|
|
|
/**
|
|
* Whether the last character tokenized was a carriage return (for CRLF)
|
|
*/
|
|
PRBool mLastWasCR;
|
|
|
|
/**
|
|
* The parser is in the fragment mode
|
|
*/
|
|
PRBool mFragmentMode;
|
|
|
|
/**
|
|
* The parser is blocking on a script
|
|
*/
|
|
PRBool mBlocked;
|
|
|
|
/**
|
|
* The number of parser-inserted script currently being evaluated.
|
|
*/
|
|
PRInt32 mParserInsertedScriptsBeingEvaluated;
|
|
|
|
/**
|
|
* True if document.close() has been called.
|
|
*/
|
|
PRBool mDocumentClosed;
|
|
|
|
// Gecko integration
|
|
void* mRootContextKey;
|
|
|
|
// Portable parser objects
|
|
/**
|
|
* The first buffer in the pending UTF-16 buffer queue
|
|
*/
|
|
nsRefPtr<nsHtml5UTF16Buffer> mFirstBuffer;
|
|
|
|
/**
|
|
* The last buffer in the pending UTF-16 buffer queue
|
|
*/
|
|
nsHtml5UTF16Buffer* mLastBuffer; // weak ref; always points to
|
|
// a buffer of the size NS_HTML5_PARSER_READ_BUFFER_SIZE
|
|
|
|
/**
|
|
* The tree operation executor
|
|
*/
|
|
nsRefPtr<nsHtml5TreeOpExecutor> mExecutor;
|
|
|
|
/**
|
|
* The HTML5 tree builder
|
|
*/
|
|
const nsAutoPtr<nsHtml5TreeBuilder> mTreeBuilder;
|
|
|
|
/**
|
|
* The HTML5 tokenizer
|
|
*/
|
|
const nsAutoPtr<nsHtml5Tokenizer> mTokenizer;
|
|
|
|
/**
|
|
* The stream parser.
|
|
*/
|
|
nsRefPtr<nsHtml5StreamParser> mStreamParser;
|
|
|
|
/**
|
|
*
|
|
*/
|
|
PRInt32 mRootContextLineNumber;
|
|
|
|
/**
|
|
* Whether it's OK to transfer parsing back to the stream parser
|
|
*/
|
|
PRBool mReturnToStreamParserPermitted;
|
|
|
|
/**
|
|
* The scoped atom table
|
|
*/
|
|
nsHtml5AtomTable mAtomTable;
|
|
|
|
};
|
|
#endif
|