dom/base/PlacesWeakCallbackWrapper.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   5  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "mozilla/dom/PlacesWeakCallbackWrapper.h"
   8
   9 #include "mozilla/HoldDropJSObjects.h"
  10 #include "mozilla/dom/ContentProcessMessageManager.h"
  11
  12 namespace mozilla {
  13 namespace dom {
  14
  15 NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_WEAK_PTR(PlacesWeakCallbackWrapper,
  16                                                mParent, mCallback)
  17 NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(PlacesWeakCallbackWrapper, AddRef)
  18 NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(PlacesWeakCallbackWrapper, Release)
  19
  20 PlacesWeakCallbackWrapper::PlacesWeakCallbackWrapper(
  21     nsISupports* aParent, PlacesEventCallback& aCallback)
  22     : mParent(do_GetWeakReference(aParent)), mCallback(&aCallback) {}
  23
  24 already_AddRefed<PlacesWeakCallbackWrapper>
  25 PlacesWeakCallbackWrapper::Constructor(const GlobalObject& aGlobal,
  26                                        PlacesEventCallback& aCallback) {
  27   nsCOMPtr<nsISupports> parent = aGlobal.GetAsSupports();
  28   RefPtr<PlacesWeakCallbackWrapper> wrapper =
  29       new PlacesWeakCallbackWrapper(parent, aCallback);
  30   return wrapper.forget();
  31 }
  32
  33 PlacesWeakCallbackWrapper::~PlacesWeakCallbackWrapper() = default;
  34
  35 nsISupports* PlacesWeakCallbackWrapper::GetParentObject() const {
  36   nsCOMPtr<nsISupports> parent = do_QueryReferent(mParent);
  37   return parent;
  38 }
  39
  40 JSObject* PlacesWeakCallbackWrapper::WrapObject(
  41     JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
  42   return PlacesWeakCallbackWrapper_Binding::Wrap(aCx, this, aGivenProto);
  43 }
  44
  45 }  // namespace dom
  46 }  // namespace mozilla