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/* 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/AlreadyAddRefed.h"
#include "mozilla/Attributes.h"
#include "mozilla/Preferences.h"
#include "mozilla/Services.h"
#include "mozilla/StaticPrefs_html5.h"
#include "nsCOMPtr.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"
using namespace mozilla;
// static
nsIThread* nsHtml5Module::sStreamParserThread = nullptr;
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");
mThread->Shutdown();
mThread = nullptr;
NS_IF_RELEASE(nsHtml5Module::sStreamParserThread);
nsHtml5Module::sStreamParserThread = nullptr;
return NS_OK;
}
private:
~nsHtml5ParserThreadTerminator() = default;
nsCOMPtr<nsIThread> mThread;
};
NS_IMPL_ISUPPORTS(nsHtml5ParserThreadTerminator, nsIObserver)
// static
void nsHtml5Module::InitializeStatics() {
nsHtml5AttributeName::initializeStatics();
nsHtml5ElementName::initializeStatics();
nsHtml5HtmlAttributes::initializeStatics();
nsHtml5NamedCharacters::initializeStatics();
nsHtml5Portability::initializeStatics();
nsHtml5StackNode::initializeStatics();
nsHtml5Tokenizer::initializeStatics();
nsHtml5TreeBuilder::initializeStatics();
nsHtml5UTF16Buffer::initializeStatics();
NS_NewNamedThread("HTML5 Parser", &sStreamParserThread);
if (sStreamParserThread) {
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
if (os) {
os->AddObserver(new nsHtml5ParserThreadTerminator(sStreamParserThread),
"xpcom-shutdown-threads", false);
} else {
MOZ_ASSERT(false,
"How come we failed to create get the observer service?");
}
} else {
MOZ_ASSERT(false, "How come we failed to create the parser thread?");
}
#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);
}
// static
already_AddRefed<nsHtml5Parser> nsHtml5Module::NewHtml5Parser() {
MOZ_ASSERT(sNsHtml5ModuleInitialized, "nsHtml5Module not initialized.");
RefPtr<nsHtml5Parser> rv = new nsHtml5Parser();
return rv.forget();
}
// static
already_AddRefed<nsISerialEventTarget>
nsHtml5Module::GetStreamParserEventTarget() {
MOZ_ASSERT(sNsHtml5ModuleInitialized, "nsHtml5Module not initialized.");
if (sStreamParserThread) {
nsCOMPtr<nsISerialEventTarget> target = sStreamParserThread;
return target.forget();
}
nsCOMPtr<nsIThread> mainThread;
NS_GetMainThread(getter_AddRefs(mainThread));
MOZ_RELEASE_ASSERT(mainThread); // Unrecoverable situation
nsCOMPtr<nsISerialEventTarget> target = mainThread;
return target.forget();
}
#ifdef DEBUG
bool nsHtml5Module::sNsHtml5ModuleInitialized = false;
#endif
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