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-rw-r--r--dom/base/EventSourceEventService.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/dom/base/EventSourceEventService.h b/dom/base/EventSourceEventService.h
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+++ b/dom/base/EventSourceEventService.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_EventSourceEventService_h
+#define mozilla_dom_EventSourceEventService_h
+
+#include "mozilla/AlreadyAddRefed.h"
+#include "mozilla/Atomics.h"
+#include "nsIEventSourceEventService.h"
+#include "nsCOMPtr.h"
+#include "nsClassHashtable.h"
+#include "nsHashKeys.h"
+#include "nsIObserver.h"
+#include "nsISupportsImpl.h"
+#include "nsTArray.h"
+
+namespace mozilla::dom {
+
+class EventSourceEventService final : public nsIEventSourceEventService,
+ public nsIObserver {
+ friend class EventSourceBaseRunnable;
+
+ public:
+ NS_DECL_THREADSAFE_ISUPPORTS
+ NS_DECL_NSIOBSERVER
+ NS_DECL_NSIEVENTSOURCEEVENTSERVICE
+
+ static already_AddRefed<EventSourceEventService> GetOrCreate();
+
+ void EventSourceConnectionOpened(uint64_t aHttpChannelId,
+ uint64_t aInnerWindowID);
+
+ void EventSourceConnectionClosed(uint64_t aHttpChannelId,
+ uint64_t aInnerWindowID);
+
+ void EventReceived(uint64_t aHttpChannelId, uint64_t aInnerWindowID,
+ const nsAString& aEventName, const nsAString& aLastEventID,
+ const nsAString& aData, uint32_t aRetry,
+ DOMHighResTimeStamp aTimeStamp);
+
+ private:
+ EventSourceEventService();
+ ~EventSourceEventService();
+
+ bool HasListeners() const;
+ void Shutdown();
+
+ using EventSourceListeners = nsTArray<nsCOMPtr<nsIEventSourceEventListener>>;
+
+ struct WindowListener {
+ EventSourceListeners mListeners;
+ };
+
+ void GetListeners(uint64_t aInnerWindowID,
+ EventSourceListeners& aListeners) const;
+
+ // Used only on the main-thread.
+ nsClassHashtable<nsUint64HashKey, WindowListener> mWindows;
+
+ Atomic<uint64_t> mCountListeners;
+};
+
+} // namespace mozilla::dom
+
+/**
+ * Casting EventSourceEventService to nsISupports is ambiguous.
+ * This method handles that.
+ */
+inline nsISupports* ToSupports(mozilla::dom::EventSourceEventService* p) {
+ return NS_ISUPPORTS_CAST(nsIEventSourceEventService*, p);
+}
+
+#endif // mozilla_dom_EventSourceEventService_h