gecko-dev/parser/html/nsHtml5Module.cpp

140 строки
3.9 KiB
C++
Исходник Обычный вид История

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsHtml5Module.h"
#include "mozilla/Attributes.h"
#include "mozilla/Preferences.h"
#include "mozilla/Services.h"
#include "mozilla/StaticPrefs.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 "nsIObserverService.h"
#include "nsIServiceManager.h"
using namespace mozilla;
// static
nsIThread* nsHtml5Module::sStreamParserThread = nullptr;
nsIThread* nsHtml5Module::sMainThread = nullptr;
// static
void
nsHtml5Module::InitializeStatics()
{
nsHtml5AttributeName::initializeStatics();
nsHtml5ElementName::initializeStatics();
nsHtml5HtmlAttributes::initializeStatics();
nsHtml5NamedCharacters::initializeStatics();
nsHtml5Portability::initializeStatics();
nsHtml5StackNode::initializeStatics();
nsHtml5Tokenizer::initializeStatics();
nsHtml5TreeBuilder::initializeStatics();
nsHtml5UTF16Buffer::initializeStatics();
#ifdef DEBUG
sNsHtml5ModuleInitialized = true;
#endif
}
// static
void
nsHtml5Module::ReleaseStatics()
{
#ifdef DEBUG
sNsHtml5ModuleInitialized = 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()
{
MOZ_ASSERT(sNsHtml5ModuleInitialized, "nsHtml5Module not initialized.");
nsCOMPtr<nsIParser> rv = new nsHtml5Parser();
return rv.forget();
}
// static
nsresult
nsHtml5Module::Initialize(nsIParser* aParser,
nsIDocument* aDoc,
nsIURI* aURI,
nsISupports* aContainer,
nsIChannel* aChannel)
{
MOZ_ASSERT(sNsHtml5ModuleInitialized, "nsHtml5Module not initialized.");
nsHtml5Parser* parser = static_cast<nsHtml5Parser*>(aParser);
return parser->Initialize(aDoc, aURI, aContainer, aChannel);
}
class nsHtml5ParserThreadTerminator final : public nsIObserver
{
public:
NS_DECL_ISUPPORTS
explicit nsHtml5ParserThreadTerminator(nsIThread* aThread)
: mThread(aThread)
{
}
NS_IMETHOD Observe(nsISupports*, const char* topic, const char16_t*) override
{
NS_ASSERTION(!strcmp(topic, "xpcom-shutdown-threads"), "Unexpected topic");
if (mThread) {
mThread->Shutdown();
mThread = nullptr;
}
return NS_OK;
}
private:
~nsHtml5ParserThreadTerminator() {}
nsCOMPtr<nsIThread> mThread;
};
NS_IMPL_ISUPPORTS(nsHtml5ParserThreadTerminator, nsIObserver)
// static
nsIThread*
nsHtml5Module::GetStreamParserThread()
{
if (StaticPrefs::html5_offmainthread()) {
if (!sStreamParserThread) {
NS_NewNamedThread("HTML5 Parser", &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",
false);
}
return sStreamParserThread;
}
if (!sMainThread) {
NS_GetMainThread(&sMainThread);
NS_ASSERTION(sMainThread, "Main thread getter failed");
}
return sMainThread;
}
#ifdef DEBUG
bool nsHtml5Module::sNsHtml5ModuleInitialized = false;
#endif