/* -*- 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_LAYERS_COMPOSITABLETRANSACTIONPARENT_H

#define MOZILLA_LAYERS_COMPOSITABLETRANSACTIONPARENT_H

#include <vector>                       // for vector

#include "mozilla/Attributes.h"         // for override

#include "mozilla/NotNull.h"

#include "mozilla/layers/ISurfaceAllocator.h"  // for ISurfaceAllocator

#include "mozilla/layers/LayersMessages.h"  // for EditReply, etc

#include "mozilla/layers/TextureClient.h"

#include "CompositableHost.h"

namespace mozilla {

namespace layers {

// Since PCompositble has two potential manager protocols, we can't just call

// the Manager() method usually generated when there's one manager protocol,

// so both manager protocols implement this and we keep a reference to them

// through this interface.

class CompositableParentManager : public HostIPCAllocator

{

public:

  CompositableParentManager() {}

  void DestroyActor(const OpDestroy& aOp);

  void UpdateFwdTransactionId(uint64_t aTransactionId)

  {

    MOZ_ASSERT(mFwdTransactionId < aTransactionId);

    mFwdTransactionId = aTransactionId;

  }

  uint64_t GetFwdTransactionId() { return mFwdTransactionId; }

  RefPtr<CompositableHost> AddCompositable(

    const CompositableHandle& aHandle,

    const TextureInfo& aInfo,

    bool aUseWebRender);

  RefPtr<CompositableHost> FindCompositable(const CompositableHandle& aHandle);

protected:

  /**

   * Handle the IPDL messages that affect PCompositable actors.

   */

  bool ReceiveCompositableUpdate(const CompositableOperation& aEdit);

  bool ReceiveCompositableUpdate(const CompositableOperationDetail& aDetail,

                                 NotNull<CompositableHost*> aCompositable);

  void ReleaseCompositable(const CompositableHandle& aHandle);

  uint64_t mFwdTransactionId = 0;

  /**

   * Mapping form IDs to CompositableHosts.

   */

  std::map<uint64_t, RefPtr<CompositableHost>> mCompositables;

};

} // namespace layers

} // namespace mozilla

#endif