dom/base/PlacesWeakCallbackWrapper.h
author Dave Townsend <dtownsend@oxymoronical.com>
Sun, 13 Jan 2019 17:44:29 -0800
changeset 453676 edca8877b0505cd1c31beaf6d907ca32e022aa52
parent 448947 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Backing out Bug 1518799 (changeset eace4709948c) because the target page is not yet available. a=backout

/* -*- 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/dom/PlacesObserversBinding.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/Pair.h"
#include "nsWrapperCache.h"

namespace mozilla {
namespace dom {

class PlacesWeakCallbackWrapper final
    : public nsWrapperCache,
      public SupportsWeakPtr<PlacesWeakCallbackWrapper> {
 public:
  MOZ_DECLARE_WEAKREFERENCE_TYPENAME(PlacesWeakCallbackWrapper)
  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,
      ErrorResult& rv);

  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