forked from mirrors/gecko-dev
a1de03c27b
Differential Revision: https://phabricator.services.mozilla.com/D30565 --HG-- extra : moz-landing-system : lando
63 lines
2 KiB
C++
63 lines
2 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_DebuggerNotificationManager_h
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#define mozilla_dom_DebuggerNotificationManager_h
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#include "DebuggerNotificationObserver.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsIGlobalObject.h"
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#include "nsISupports.h"
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#include "nsTObserverArray.h"
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namespace mozilla {
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namespace dom {
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class DebuggerNotificationManager final : public nsISupports {
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public:
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(DebuggerNotificationManager)
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static RefPtr<DebuggerNotificationManager> ForDispatch(
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nsIGlobalObject* aDebuggeeGlobal) {
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if (MOZ_UNLIKELY(!aDebuggeeGlobal)) {
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return nullptr;
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}
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auto managerPtr = aDebuggeeGlobal->GetExistingDebuggerNotificationManager();
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if (MOZ_LIKELY(!managerPtr) || !managerPtr->HasListeners()) {
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return nullptr;
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}
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return managerPtr;
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}
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explicit DebuggerNotificationManager(nsIGlobalObject* aDebuggeeGlobal)
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: mDebuggeeGlobal(aDebuggeeGlobal), mNotificationObservers() {}
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bool Attach(DebuggerNotificationObserver* aObserver);
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bool Detach(DebuggerNotificationObserver* aObserver);
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bool HasListeners();
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template <typename T, typename... Args>
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MOZ_CAN_RUN_SCRIPT void Dispatch(Args... aArgs) {
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RefPtr<DebuggerNotification> notification(new T(mDebuggeeGlobal, aArgs...));
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NotifyListeners(notification);
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}
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private:
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~DebuggerNotificationManager() = default;
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MOZ_CAN_RUN_SCRIPT void NotifyListeners(DebuggerNotification* aNotification);
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nsCOMPtr<nsIGlobalObject> mDebuggeeGlobal;
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nsTObserverArray<RefPtr<DebuggerNotificationObserver>> mNotificationObservers;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_DebuggerNotificationManager_h
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