Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 123 insertions, 0 deletions

diff --git a/parser/html/nsHtml5Module.cpp b/parser/html/nsHtml5Module.cpp
new file mode 100644
index 0000000000..366a63e54f
--- /dev/null
+++ b/parser/html/nsHtml5Module.cpp
@@ -0,0 +1,123 @@
+/* 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