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-rw-r--r--dom/base/MessageBroadcaster.h50
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diff --git a/dom/base/MessageBroadcaster.h b/dom/base/MessageBroadcaster.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#ifndef mozilla_dom_MessageBroadcaster_h
+#define mozilla_dom_MessageBroadcaster_h
+
+#include "mozilla/dom/MessageListenerManager.h"
+#include "nsContentUtils.h"
+
+namespace mozilla::dom {
+
+/**
+ * Implementation for the WebIDL MessageBroadcaster interface. Base class for
+ * window and process broadcaster message managers.
+ */
+class MessageBroadcaster : public MessageListenerManager {
+ public:
+ static MessageBroadcaster* From(MessageListenerManager* aManager) {
+ if (aManager->IsBroadcaster()) {
+ return static_cast<MessageBroadcaster*>(aManager);
+ }
+ return nullptr;
+ }
+
+ void BroadcastAsyncMessage(JSContext* aCx, const nsAString& aMessageName,
+ JS::Handle<JS::Value> aObj,
+ mozilla::ErrorResult& aError) {
+ DispatchAsyncMessage(aCx, aMessageName, aObj, JS::UndefinedHandleValue,
+ aError);
+ }
+ uint32_t ChildCount() { return mChildManagers.Length(); }
+ MessageListenerManager* GetChildAt(uint32_t aIndex) {
+ return mChildManagers.SafeElementAt(aIndex);
+ }
+ void ReleaseCachedProcesses();
+
+ void AddChildManager(MessageListenerManager* aManager);
+ void RemoveChildManager(MessageListenerManager* aManager);
+
+ protected:
+ MessageBroadcaster(MessageBroadcaster* aParentManager,
+ MessageManagerFlags aFlags);
+};
+
+} // namespace mozilla::dom
+
+#endif // mozilla_dom_MessageBroadcaster_h