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71 lines
1.6 KiB
C++
71 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=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 "LSObserver.h"
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// Local includes
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#include "ActorsChild.h"
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// Global includes
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#include <utility>
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#include "mozilla/StaticPtr.h"
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#include "nsTHashMap.h"
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#include "nsHashKeys.h"
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namespace mozilla::dom {
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namespace {
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using LSObserverHashtable = nsTHashMap<nsCStringHashKey, LSObserver*>;
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StaticAutoPtr<LSObserverHashtable> gLSObservers;
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} // namespace
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LSObserver::LSObserver(const nsACString& aOrigin)
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: mActor(nullptr), mOrigin(aOrigin) {
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AssertIsOnOwningThread();
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if (!gLSObservers) {
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gLSObservers = new LSObserverHashtable();
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}
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MOZ_ASSERT(!gLSObservers->Contains(mOrigin));
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gLSObservers->InsertOrUpdate(mOrigin, this);
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}
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LSObserver::~LSObserver() {
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AssertIsOnOwningThread();
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if (mActor) {
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mActor->SendDeleteMeInternal();
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MOZ_ASSERT(!mActor, "SendDeleteMeInternal should have cleared!");
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}
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MOZ_ASSERT(gLSObservers);
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MOZ_ASSERT(gLSObservers->Get(mOrigin));
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gLSObservers->Remove(mOrigin);
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if (!gLSObservers->Count()) {
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gLSObservers = nullptr;
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}
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}
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// static
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LSObserver* LSObserver::Get(const nsACString& aOrigin) {
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return gLSObservers ? gLSObservers->Get(aOrigin) : nullptr;
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}
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void LSObserver::SetActor(LSObserverChild* aActor) {
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AssertIsOnOwningThread();
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MOZ_ASSERT(aActor);
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MOZ_ASSERT(!mActor);
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mActor = aActor;
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}
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} // namespace mozilla::dom
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