InProcessChild.h - mozsearch

Enable keyboard shortcuts

/* -*- 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_InProcessChild_h

#define mozilla_dom_InProcessChild_h

#include "mozilla/dom/PInProcessChild.h"

#include "mozilla/dom/JSProcessActorChild.h"

#include "mozilla/dom/ProcessActor.h"

#include "mozilla/dom/RemoteType.h"

#include "mozilla/StaticPtr.h"

#include "nsIDOMProcessChild.h"

namespace mozilla::dom {

class PWindowGlobalParent;

class PWindowGlobalChild;

class InProcessParent;

/**

 * The `InProcessChild` class represents the child 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 InProcessChild final : public nsIDOMProcessChild,

                             public PInProcessChild,

                             public ProcessActor {

 public:

  friend class InProcessParent;

  friend class PInProcessChild;

  NS_DECL_ISUPPORTS

  NS_DECL_NSIDOMPROCESSCHILD

  // Get the singleton instance of this actor.

  static InProcessChild* Singleton();

  // Get the parent 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* ParentActorFor(IProtocol* aActor);

  const nsACString& GetRemoteType() const override { return NOT_REMOTE_TYPE; }

 protected:

  already_AddRefed<JSActor> InitJSActor(JS::Handle<JSObject*> aMaybeActor,

                                        const nsACString& aName,

                                        ErrorResult& aRv) override;

  mozilla::ipc::IProtocol* AsNativeActor() override { return this; }

 private:

  // NOTE: PInProcess lifecycle management is declared as staic methods and

  // state on InProcessParent, and implemented in InProcessImpl.cpp.

  virtual void ActorDestroy(ActorDestroyReason aWhy) override;

  ~InProcessChild() = default;

  static StaticRefPtr<InProcessChild> sSingleton;

  nsRefPtrHashtable<nsCStringHashKey, JSProcessActorChild> mProcessActors;

};

}  // namespace mozilla::dom

#endif  // defined(mozilla_dom_InProcessChild_h)