1 files changed, 45 insertions, 0 deletions
diff --git a/dom/base/PlacesWeakCallbackWrapper.h b/dom/base/PlacesWeakCallbackWrapper.h
new file mode 100644
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+++ b/dom/base/PlacesWeakCallbackWrapper.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_PlacesWeakCallbackWrapper_h
+#define mozilla_dom_PlacesWeakCallbackWrapper_h
+
+#include "mozilla/WeakPtr.h"
+#include "mozilla/dom/PlacesObserversBinding.h"
+#include "nsIWeakReferenceUtils.h"
+#include "nsWrapperCache.h"
+
+namespace mozilla {
+namespace dom {
+
+class PlacesWeakCallbackWrapper final : public nsWrapperCache,
+                                        public SupportsWeakPtr {
+ public:
+  NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(PlacesWeakCallbackWrapper)
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(PlacesWeakCallbackWrapper)
+
+  explicit PlacesWeakCallbackWrapper(nsISupports* aParent,
+                                     PlacesEventCallback& aCallback);
+
+  static already_AddRefed<PlacesWeakCallbackWrapper> Constructor(
+      const GlobalObject& aGlobal, PlacesEventCallback& aCallback);
+
+  nsISupports* GetParentObject() const;
+
+  JSObject* WrapObject(JSContext* aCx,
+                       JS::Handle<JSObject*> aGivenProto) override;
+
+ protected:
+  friend class PlacesObservers;
+  ~PlacesWeakCallbackWrapper();
+  nsWeakPtr mParent;
+  RefPtr<PlacesEventCallback> mCallback;
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#endif  // mozilla_dom_PlacesWeakCallbackWrapper_h