gecko-dev/dom/ipc/InProcessParent.h

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2.2 KiB
C++

/* -*- 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_InProcessParent_h
#define mozilla_dom_InProcessParent_h
#include "mozilla/dom/PInProcessParent.h"
#include "mozilla/dom/JSProcessActorParent.h"
#include "mozilla/dom/ProcessActor.h"
#include "mozilla/StaticPtr.h"
#include "nsIDOMProcessParent.h"
namespace mozilla {
namespace dom {
class PWindowGlobalParent;
class PWindowGlobalChild;
class InProcessChild;
/**
* The `InProcessParent` class represents the parent half of a main-thread to
* main-thread actor.
*
* The `PInProcess` actor should be used as an alternate manager to `PContent`
* for async actors which want to communicate uniformly between Content->Chrome
* and Chrome->Chrome situations.
*/
class InProcessParent final : public nsIDOMProcessParent,
public nsIObserver,
public PInProcessParent,
public ProcessActor {
public:
friend class InProcessChild;
friend class PInProcessParent;
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMPROCESSPARENT
NS_DECL_NSIOBSERVER
// Get the singleton instance of this actor.
static InProcessParent* Singleton();
// Get the child side of the in-process child actor |aActor|. If |aActor| is
// not an in-process actor, or is not connected, this method will return
// |nullptr|.
static IProtocol* ChildActorFor(IProtocol* aActor);
const nsAString& GetRemoteType() const override { return VoidString(); };
JSActor::Type GetSide() override { return JSActor::Type::Parent; }
private:
// Lifecycle management is implemented in InProcessImpl.cpp
virtual void ActorDestroy(ActorDestroyReason aWhy) override;
~InProcessParent() = default;
static void Startup();
static void Shutdown();
static StaticRefPtr<InProcessParent> sSingleton;
static bool sShutdown;
nsRefPtrHashtable<nsCStringHashKey, JSProcessActorParent> mProcessActors;
};
} // namespace dom
} // namespace mozilla
#endif // defined(mozilla_dom_InProcessParent_h)