forked from mirrors/gecko-dev
c31aa68fb4
This covers most cycle collected objects which support weak references, but not the ones which inherit from a cycle collected class and don't do any cycle collection on their own. Differential Revision: https://phabricator.services.mozilla.com/D63962 --HG-- extra : moz-landing-system : lando
46 lines
1.8 KiB
C++
46 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/PlacesWeakCallbackWrapper.h"
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#include "mozilla/HoldDropJSObjects.h"
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#include "mozilla/dom/ContentProcessMessageManager.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_WEAK_PTR(PlacesWeakCallbackWrapper,
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mParent, mCallback)
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NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(PlacesWeakCallbackWrapper, AddRef)
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NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(PlacesWeakCallbackWrapper, Release)
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PlacesWeakCallbackWrapper::PlacesWeakCallbackWrapper(
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nsISupports* aParent, PlacesEventCallback& aCallback)
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: mParent(do_GetWeakReference(aParent)), mCallback(&aCallback) {}
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already_AddRefed<PlacesWeakCallbackWrapper>
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PlacesWeakCallbackWrapper::Constructor(const GlobalObject& aGlobal,
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PlacesEventCallback& aCallback) {
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nsCOMPtr<nsISupports> parent = aGlobal.GetAsSupports();
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RefPtr<PlacesWeakCallbackWrapper> wrapper =
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new PlacesWeakCallbackWrapper(parent, aCallback);
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return wrapper.forget();
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}
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PlacesWeakCallbackWrapper::~PlacesWeakCallbackWrapper() = default;
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nsISupports* PlacesWeakCallbackWrapper::GetParentObject() const {
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nsCOMPtr<nsISupports> parent = do_QueryReferent(mParent);
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return parent;
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}
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JSObject* PlacesWeakCallbackWrapper::WrapObject(
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JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
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return PlacesWeakCallbackWrapper_Binding::Wrap(aCx, this, aGivenProto);
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}
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} // namespace dom
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} // namespace mozilla
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