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Bug 541496 prelim 1: remove nsIUnicharStreamListener (no in-tree implementations). r=hsivonen

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This commit is contained in:
Zack Weinberg 2011-05-06 08:45:33 -07:00
parent 66511e780a
commit 66c29ada9f
9 changed files with 1 additions and 288 deletions
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1
netwerk/base/public/Makefile.in
View File

@ -57,7 +57,6 @@ SDK_XPIDLSRCS = \
nsIURL.idl \
nsIFileURL.idl \
nsIUploadChannel.idl \
nsIUnicharStreamListener.idl \
nsITraceableChannel.idl \
$(NULL)

64
netwerk/base/public/nsIUnicharStreamListener.idl
View File

@ -1,64 +0,0 @@
/* -*- Mode: C++; tab-width: 4; 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 mozilla.org.
* Portions created by the Initial Developer are Copyright (C) 2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Johnny Stenback <jst@mozilla.org>
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 ***** */
#include "nsIRequestObserver.idl"
/**
* nsIUnicharStreamListener is very similar to nsIStreamListener with
* the difference being that this interface gives notifications about
* data being available after the raw data has been converted to
* UTF-16.
*
* nsIUnicharStreamListener
*/
[scriptable, uuid(4a7e9b62-fef8-400d-9865-d6820f630b4c)]
interface nsIUnicharStreamListener : nsIRequestObserver
{
/**
* Called when the next chunk of data (corresponding to the
* request) is available.
*
* @param aRequest request corresponding to the source of the data
* @param aContext user defined context
* @param aData the data chunk
*
* An exception thrown from onUnicharDataAvailable has the
* side-effect of causing the request to be canceled.
*/
void onUnicharDataAvailable(in nsIRequest aRequest,
in nsISupports aContext, in AString aData);
};

1
parser/html/nsHtml5Parser.h
View File

@ -53,7 +53,6 @@
#include "nsCOMArray.h"
#include "nsContentSink.h"
#include "nsIHTMLDocument.h"
#include "nsIUnicharStreamListener.h"
#include "nsCycleCollectionParticipant.h"
#include "nsIInputStream.h"
#include "nsDetectionConfident.h"

4
parser/htmlparser/public/Makefile.in
View File

@ -69,10 +69,6 @@ EXPORTS = \
nsToken.h \
$(NULL)
SDK_HEADERS = \
nsParserDataListener.h \
$(NULL)
ifdef MOZ_DEBUG
EXPORTS += \
nsILoggingSink.h \

89
parser/htmlparser/public/nsParserDataListener.h
View File

@ -1,89 +0,0 @@
/* -*- Mode: C++; tab-width: 4; 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 mozilla.org.
* Portions created by the Initial Developer are Copyright (C) 2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Johnny Stenback <jst@mozilla.org>
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 __nsParserDataListener_h__
#define __nsParserDataListener_h__
/*
* Include this header if you're implementing a parser data
* listener. To make a component a parser data listener you'll need to
* make your component implement the interface
* nsIUnicharStreamListener. That interface has three methods (one +
* two inherited ones, not counting what's defined in
* nsISupports). The methods are:
*
* void onStartRequest(in nsIRequest aRequest,
* in nsISupports aContext);
* void onUnicharDataAvailable(in nsIRequest aRequest,
* in nsISupports aContext, in AString aData);
* void onStopRequest(in nsIRequest aRequest,
* in nsISupports aContext,
* in nsresult aStatusCode);
*
* All those methods are called for every network request that ends up
* feeding data to the parser. The method are called in the order
* shown above, first one call to onStartRequest(), then one call to
* onUnicharDataAvailable() per chunk of data received and converted
* to UTF-16, and finally one call to onStopRequest().
*
* The nsIRequest passed into these methods will be the same object
* for all these calls for a given network request. If the request
* pointer is used to uniquely identify an ongoing request, the
* pointer should be QueryInterface()'d to nsISupports to ensure that
* the pointer used is the identity pointer to the object.
*
* The context argument passed to these methods will be the document
* (nsIDOMDocument) parsed from the stream, or null when not
* available.
*
* Any errors returned from any of these calls will end up canceling
* the stream, and the data that is passed to the call in question
* will *not* be seen by the parser. So unless you intend to interrupt
* a request, *make sure* that you return NS_OK from these methods!
*/
#include "nsIUnicharStreamListener.h"
/*
* To register a component to be a parser data listener the
* component's contract id should be registered with the category
* manager (nsICategoryManager), with the category
* PARSER_DATA_LISTENER_CATEGORY, defined here.
*/
#define PARSER_DATA_LISTENER_CATEGORY "Parser data listener"
#endif // __nsParserDataListener_h__

103
parser/htmlparser/src/nsParser.cpp
View File

@ -88,10 +88,6 @@ static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_CID(kCParserCID, NS_PARSER_CID);
static NS_DEFINE_IID(kIParserIID, NS_IPARSER_IID);
//-------------------------------------------------------------------
nsCOMArray<nsIUnicharStreamListener> *nsParser::sParserDataListeners;
//-------------- Begin ParseContinue Event Definition ------------------------
/*
The parser can be explicitly interrupted by passing a return value of
@ -672,47 +668,6 @@ nsresult
nsParser::Init()
{
nsresult rv;
nsCOMPtr<nsICategoryManager> cm =
do_GetService(NS_CATEGORYMANAGER_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsISimpleEnumerator> e;
rv = cm->EnumerateCategory("Parser data listener", getter_AddRefs(e));
NS_ENSURE_SUCCESS(rv, rv);
nsCAutoString categoryEntry;
nsXPIDLCString contractId;
nsCOMPtr<nsISupports> entry;
while (NS_SUCCEEDED(e->GetNext(getter_AddRefs(entry)))) {
nsCOMPtr<nsISupportsCString> category(do_QueryInterface(entry));
if (!category) {
NS_WARNING("Category entry not an nsISupportsCString!");
continue;
}
rv = category->GetData(categoryEntry);
NS_ENSURE_SUCCESS(rv, rv);
rv = cm->GetCategoryEntry("Parser data listener", categoryEntry.get(),
getter_Copies(contractId));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIUnicharStreamListener> listener =
do_CreateInstance(contractId.get());
if (listener) {
if (!sParserDataListeners) {
sParserDataListeners = new nsCOMArray<nsIUnicharStreamListener>();
if (!sParserDataListeners)
return NS_ERROR_OUT_OF_MEMORY;
}
sParserDataListeners->AppendObject(listener);
}
}
nsCOMPtr<nsICharsetAlias> charsetAlias =
do_GetService(NS_CHARSETALIAS_CONTRACTID, &rv);
@ -750,9 +705,6 @@ nsParser::Init()
// static
void nsParser::Shutdown()
{
delete sParserDataListeners;
sParserDataListeners = nsnull;
NS_IF_RELEASE(sCharsetAliasService);
NS_IF_RELEASE(sCharsetConverterManager);
if (sSpeculativeThreadPool) {
@ -1847,35 +1799,6 @@ void nsParser::HandleParserContinueEvent(nsParserContinueEvent *ev)
ContinueInterruptedParsing();
}
nsresult
nsParser::DataAdded(const nsSubstring& aData, nsIRequest *aRequest)
{
NS_ASSERTION(sParserDataListeners,
"Don't call this with no parser data listeners!");
if (!mSink || !aRequest) {
return NS_OK;
}
nsISupports *ctx = mSink->GetTarget();
PRInt32 count = sParserDataListeners->Count();
nsresult rv = NS_OK;
PRBool canceled = PR_FALSE;
while (count--) {
rv |= sParserDataListeners->ObjectAt(count)->
OnUnicharDataAvailable(aRequest, ctx, aData);
if (NS_FAILED(rv) && !canceled) {
aRequest->Cancel(rv);
canceled = PR_TRUE;
}
}
return rv;
}
PRBool
nsParser::CanInterrupt()
{
@ -1957,12 +1880,6 @@ nsParser::Parse(nsIURI* aURL,
pc->mDTDMode = aMode;
PushContext(*pc);
// Here, and only here, hand this parser off to the scanner. We
// only want to do that here since the only reason the scanner
// needs the parser is to call DataAdded() on it, and that's
// only ever wanted when parsing from an URI.
theScanner->SetParser(this);
result = NS_OK;
} else {
result = mInternalState = NS_ERROR_HTMLPARSER_BADCONTEXT;
@ -2447,16 +2364,6 @@ nsParser::OnStartRequest(nsIRequest *request, nsISupports* aContext)
rv = NS_OK;
if (sParserDataListeners && mSink) {
nsISupports *ctx = mSink->GetTarget();
PRInt32 count = sParserDataListeners->Count();
while (count--) {
rv |= sParserDataListeners->ObjectAt(count)->
OnStartRequest(request, ctx);
}
}
return rv;
}
@ -2956,16 +2863,6 @@ nsParser::OnStopRequest(nsIRequest *request, nsISupports* aContext,
mObserver->OnStopRequest(request, aContext, status);
}
if (sParserDataListeners && mSink) {
nsISupports *ctx = mSink->GetTarget();
PRInt32 count = sParserDataListeners->Count();
while (count--) {
rv |= sParserDataListeners->ObjectAt(count)->OnStopRequest(request, ctx,
status);
}
}
return rv;
}

9
parser/htmlparser/src/nsParser.h
View File

@ -86,7 +86,6 @@
#include "nsIContentSink.h"
#include "nsIParserFilter.h"
#include "nsCOMArray.h"
#include "nsIUnicharStreamListener.h"
#include "nsCycleCollectionParticipant.h"
#include "nsWeakReference.h"
@ -384,14 +383,6 @@ class nsParser : public nsIParser,
*/
void HandleParserContinueEvent(class nsParserContinueEvent *);
/**
* Called by top-level scanners when data from necko is added to
* the scanner.
*/
nsresult DataAdded(const nsSubstring& aData, nsIRequest *aRequest);
static nsCOMArray<nsIUnicharStreamListener> *sParserDataListeners;
static nsICharsetAlias* GetCharsetAliasService() {
return sCharsetAliasService;
}

11
parser/htmlparser/src/nsScanner.cpp
View File

@ -90,7 +90,6 @@ const int kBufsize=64;
*/
nsScanner::nsScanner(const nsAString& anHTMLString, const nsACString& aCharset,
PRInt32 aSource)
: mParser(nsnull)
{
MOZ_COUNT_CTOR(nsScanner);
@ -123,7 +122,7 @@ nsScanner::nsScanner(const nsAString& anHTMLString, const nsACString& aCharset,
*/
nsScanner::nsScanner(nsString& aFilename,PRBool aCreateStream,
const nsACString& aCharset, PRInt32 aSource)
: mFilename(aFilename), mParser(nsnull)
: mFilename(aFilename)
{
MOZ_COUNT_CTOR(nsScanner);
NS_ASSERTION(!aCreateStream, "This is always true.");
@ -1166,14 +1165,6 @@ PRBool nsScanner::AppendToBuffer(nsScannerString::Buffer* aBuf,
nsIRequest *aRequest,
PRInt32 aErrorPos)
{
if (nsParser::sParserDataListeners && mParser &&
NS_FAILED(mParser->DataAdded(Substring(aBuf->DataStart(),
aBuf->DataEnd()), aRequest))) {
// Don't actually append on failure.
return mSlidingBuffer != nsnull;
}
PRUint32 countRemaining = mCountRemaining;
if (!mSlidingBuffer) {
mSlidingBuffer = new nsScannerString(aBuf);

7
parser/htmlparser/src/nsScanner.h
View File

@ -310,12 +310,6 @@ class nsScanner {
return mFirstNonWhitespacePosition;
}
void SetParser(nsParser *aParser)
{
mParser = aParser;
}
/**
* Override replacement character used by nsIUnicodeDecoder.
* Default behavior is that it uses nsIUnicodeDecoder's mapping.
@ -352,7 +346,6 @@ class nsScanner {
PRInt32 mCharsetSource;
nsCString mCharset;
nsCOMPtr<nsIUnicodeDecoder> mUnicodeDecoder;
nsParser *mParser;
private:
nsScanner &operator =(const nsScanner &); // Not implemented.