1 files changed, 44 insertions, 0 deletions
diff --git a/dom/presentation/AvailabilityCollection.h b/dom/presentation/AvailabilityCollection.h
new file mode 100644
index 0000000000..0e0914850d
--- /dev/null
+++ b/dom/presentation/AvailabilityCollection.h
@@ -0,0 +1,44 @@
+/* -*- 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_AvailabilityCollection_h
+#define mozilla_dom_AvailabilityCollection_h
+
+#include "mozilla/StaticPtr.h"
+#include "mozilla/WeakPtr.h"
+#include "nsString.h"
+#include "nsTArray.h"
+
+namespace mozilla {
+namespace dom {
+
+class PresentationAvailability;
+
+class AvailabilityCollection final {
+ public:
+  static AvailabilityCollection* GetSingleton();
+
+  void Add(PresentationAvailability* aAvailability);
+
+  void Remove(PresentationAvailability* aAvailability);
+
+  already_AddRefed<PresentationAvailability> Find(
+      const uint64_t aWindowId, const nsTArray<nsString>& aUrls);
+
+ private:
+  friend class StaticAutoPtr<AvailabilityCollection>;
+
+  AvailabilityCollection();
+  virtual ~AvailabilityCollection();
+
+  static StaticAutoPtr<AvailabilityCollection> sSingleton;
+  nsTArray<WeakPtr<PresentationAvailability>> mAvailabilities;
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#endif  // mozilla_dom_AvailabilityCollection_h