Files
tubestation/parser/html/nsHtml5Module.cpp
Sandor Molnar f236c54e45 Backed out 6 changesets (bug 1809752, bug 1809753) for causing perma failures in browser/components/firefoxview/tests/browser/browser_feature_callout_position.js
Backed out changeset ea05784d74c4 (bug 1809753)
Backed out changeset 7c9b20eebcc8 (bug 1809753)
Backed out changeset d0267ac2256d (bug 1809753)
Backed out changeset aa9f2971bd6f (bug 1809753)
Backed out changeset f0d9fcfaa6f8 (bug 1809752)
Backed out changeset 6d58c799cffe (bug 1809752)
2023-01-17 03:19:24 +02:00

125 lines
3.9 KiB
C++

/* 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->SerialEventTarget();
return target.forget();
}
nsCOMPtr<nsIThread> mainThread;
NS_GetMainThread(getter_AddRefs(mainThread));
MOZ_RELEASE_ASSERT(mainThread); // Unrecoverable situation
nsCOMPtr<nsISerialEventTarget> target = mainThread->SerialEventTarget();
return target.forget();
}
#ifdef DEBUG
bool nsHtml5Module::sNsHtml5ModuleInitialized = false;
#endif