gecko/parser/html/nsHtml5Module.cpp

169 lines
5.5 KiB
C++

/* ***** 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 HTML Parser C++ Translator code.
*
* The Initial Developer of the Original Code is
* Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2008
* 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 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 "nsContentUtils.h"
#include "nsHtml5AttributeName.h"
#include "nsHtml5ElementName.h"
#include "nsHtml5HtmlAttributes.h"
#include "nsHtml5NamedCharacters.h"
#include "nsHtml5Portability.h"
#include "nsHtml5StackNode.h"
#include "nsHtml5Tokenizer.h"
#include "nsHtml5TreeBuilder.h"
#include "nsHtml5UTF16Buffer.h"
#include "nsHtml5Module.h"
#include "nsIObserverService.h"
#include "nsIServiceManager.h"
#include "mozilla/Services.h"
// static
PRBool nsHtml5Module::sEnabled = PR_FALSE;
PRBool nsHtml5Module::sOffMainThread = PR_TRUE;
nsIThread* nsHtml5Module::sStreamParserThread = nsnull;
nsIThread* nsHtml5Module::sMainThread = nsnull;
// static
void
nsHtml5Module::InitializeStatics()
{
nsContentUtils::AddBoolPrefVarCache("html5.parser.enable", &sEnabled);
nsContentUtils::AddBoolPrefVarCache("html5.offmainthread", &sOffMainThread);
nsHtml5Atoms::AddRefAtoms();
nsHtml5AttributeName::initializeStatics();
nsHtml5ElementName::initializeStatics();
nsHtml5HtmlAttributes::initializeStatics();
nsHtml5NamedCharacters::initializeStatics();
nsHtml5Portability::initializeStatics();
nsHtml5StackNode::initializeStatics();
nsHtml5Tokenizer::initializeStatics();
nsHtml5TreeBuilder::initializeStatics();
nsHtml5UTF16Buffer::initializeStatics();
nsHtml5StreamParser::InitializeStatics();
#ifdef DEBUG
sNsHtml5ModuleInitialized = PR_TRUE;
#endif
}
// static
void
nsHtml5Module::ReleaseStatics()
{
#ifdef DEBUG
sNsHtml5ModuleInitialized = PR_FALSE;
#endif
nsHtml5AttributeName::releaseStatics();
nsHtml5ElementName::releaseStatics();
nsHtml5HtmlAttributes::releaseStatics();
nsHtml5NamedCharacters::releaseStatics();
nsHtml5Portability::releaseStatics();
nsHtml5StackNode::releaseStatics();
nsHtml5Tokenizer::releaseStatics();
nsHtml5TreeBuilder::releaseStatics();
nsHtml5UTF16Buffer::releaseStatics();
NS_IF_RELEASE(sStreamParserThread);
NS_IF_RELEASE(sMainThread);
}
// static
already_AddRefed<nsIParser>
nsHtml5Module::NewHtml5Parser()
{
NS_ABORT_IF_FALSE(sNsHtml5ModuleInitialized, "nsHtml5Module not initialized.");
nsIParser* rv = static_cast<nsIParser*> (new nsHtml5Parser());
NS_ADDREF(rv);
return rv;
}
// static
nsresult
nsHtml5Module::Initialize(nsIParser* aParser, nsIDocument* aDoc, nsIURI* aURI, nsISupports* aContainer, nsIChannel* aChannel)
{
NS_ABORT_IF_FALSE(sNsHtml5ModuleInitialized, "nsHtml5Module not initialized.");
nsHtml5Parser* parser = static_cast<nsHtml5Parser*> (aParser);
return parser->Initialize(aDoc, aURI, aContainer, aChannel);
}
class nsHtml5ParserThreadTerminator : public nsIObserver
{
public:
NS_DECL_ISUPPORTS
nsHtml5ParserThreadTerminator(nsIThread* aThread)
: mThread(aThread)
{}
NS_IMETHODIMP Observe(nsISupports *, const char *topic, const PRUnichar *)
{
NS_ASSERTION(!strcmp(topic, "xpcom-shutdown-threads"),
"Unexpected topic");
if (mThread) {
mThread->Shutdown();
mThread = nsnull;
}
return NS_OK;
}
private:
nsCOMPtr<nsIThread> mThread;
};
NS_IMPL_ISUPPORTS1(nsHtml5ParserThreadTerminator, nsIObserver)
// static
nsIThread*
nsHtml5Module::GetStreamParserThread()
{
if (sOffMainThread) {
if (!sStreamParserThread) {
NS_NewThread(&sStreamParserThread);
NS_ASSERTION(sStreamParserThread, "Thread creation failed!");
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
NS_ASSERTION(os, "do_GetService failed");
os->AddObserver(new nsHtml5ParserThreadTerminator(sStreamParserThread),
"xpcom-shutdown-threads",
PR_FALSE);
}
return sStreamParserThread;
}
if (!sMainThread) {
NS_GetMainThread(&sMainThread);
NS_ASSERTION(sMainThread, "Main thread getter failed");
}
return sMainThread;
}
#ifdef DEBUG
PRBool nsHtml5Module::sNsHtml5ModuleInitialized = PR_FALSE;
#endif