/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* 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 GMPServiceChild_h_

#define GMPServiceChild_h_

#include "GMPService.h"

#include "MediaResult.h"

#include "base/process.h"

#include "mozilla/ipc/Transport.h"

#include "mozilla/gmp/PGMPServiceChild.h"

#include "nsRefPtrHashtable.h"

#include "mozilla/dom/ContentChild.h"

namespace mozilla {

namespace gmp {

class GMPContentParent;

class GMPServiceChild;

class GeckoMediaPluginServiceChild : public GeckoMediaPluginService

{

  friend class GMPServiceChild;

public:

  static already_AddRefed<GeckoMediaPluginServiceChild> GetSingleton();

  NS_IMETHOD HasPluginForAPI(const nsACString& aAPI,

                             nsTArray<nsCString>* aTags,

                             bool *aRetVal) override;

  NS_IMETHOD GetNodeId(const nsAString& aOrigin,

                       const nsAString& aTopLevelOrigin,

                       const nsAString& aGMPName,

                       UniquePtr<GetNodeIdCallback>&& aCallback) override;

  NS_DECL_NSIOBSERVER

  void SetServiceChild(UniquePtr<GMPServiceChild>&& aServiceChild);

  void RemoveGMPContentParent(GMPContentParent* aGMPContentParent);

  static void UpdateGMPCapabilities(nsTArray<mozilla::dom::GMPCapabilityData>&& aCapabilities);

  void BeginShutdown();

protected:

  void InitializePlugins(AbstractThread*) override

  {

    // Nothing to do here.

  }

  virtual RefPtr<GetGMPContentParentPromise> GetContentParent(

    GMPCrashHelper* aHelper,

    const nsACString& aNodeIdString,

    const nsCString& aAPI,

    const nsTArray<nsCString>& aTags) override;

  RefPtr<GetGMPContentParentPromise> GetContentParent(

    GMPCrashHelper* aHelper,

    const NodeId& aNodeId,

    const nsCString& aAPI,

    const nsTArray<nsCString>& aTags) override;

private:

  friend class OpenPGMPServiceChild;

  typedef MozPromise<GMPServiceChild*, MediaResult, /* IsExclusive = */ true>

    GetServiceChildPromise;

  RefPtr<GetServiceChildPromise> GetServiceChild();

  nsTArray<MozPromiseHolder<GetServiceChildPromise>> mGetServiceChildPromises;

  UniquePtr<GMPServiceChild> mServiceChild;

};

class GMPServiceChild : public PGMPServiceChild

{

public:

  explicit GMPServiceChild();

  virtual ~GMPServiceChild();

  already_AddRefed<GMPContentParent> GetBridgedGMPContentParent(ProcessId aOtherPid,

                                                                ipc::Endpoint<PGMPContentParent>&& endpoint);

  void RemoveGMPContentParent(GMPContentParent* aGMPContentParent);

  void GetAlreadyBridgedTo(nsTArray<ProcessId>& aAlreadyBridgedTo);

  static bool Create(Endpoint<PGMPServiceChild>&& aGMPService);

  ipc::IPCResult RecvBeginShutdown() override;

  bool HaveContentParents() const;

private:

  nsRefPtrHashtable<nsUint64HashKey, GMPContentParent> mContentParents;

};

} // namespace gmp

} // namespace mozilla

#endif // GMPServiceChild_h_