VRManagerParent.h - mozsearch

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/* -*- 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_GFX_VR_VRMANAGERPARENT_H

#define MOZILLA_GFX_VR_VRMANAGERPARENT_H

#include "mozilla/dom/ipc/IdType.h"

#include "mozilla/layers/CompositorThread.h"  // for CompositorThreadHolder

#include "mozilla/layers/CompositableTransactionParent.h"  // need?

#include "mozilla/gfx/PVRManagerParent.h"  // for PVRManagerParent

#include "mozilla/gfx/PVRLayerParent.h"    // for PVRLayerParent

#include "mozilla/ipc/ProtocolUtils.h"     // for IToplevelProtocol

#include "mozilla/TimeStamp.h"             // for TimeStamp

#include "gfxVR.h"                         // for VRFieldOfView

namespace mozilla {

using namespace layers;

namespace gfx {

class VRManager;

class VRManagerParent final : public PVRManagerParent {

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VRManagerParent, final);

  friend class PVRManagerParent;

 public:

  explicit VRManagerParent(ipc::EndpointProcInfo aChildProcess,

                           dom::ContentParentId aChildId, bool aIsContentChild);

  static already_AddRefed<VRManagerParent> CreateSameProcess();

  static bool CreateForGPUProcess(Endpoint<PVRManagerParent>&& aEndpoint);

  static bool CreateForContent(Endpoint<PVRManagerParent>&& aEndpoint,

                               dom::ContentParentId aChildId);

  static void Shutdown();

  bool IsSameProcess() const;

  bool HaveEventListener();

  bool HaveControllerListener();

  bool GetVRActiveStatus();

  bool SendReplyGamepadVibrateHaptic(const uint32_t& aPromiseID);

 protected:

  ~VRManagerParent();

  PVRLayerParent* AllocPVRLayerParent(const uint32_t& aDisplayID,

                                      const uint32_t& aGroup);

  bool DeallocPVRLayerParent(PVRLayerParent* actor);

  virtual void ActorDestroy(ActorDestroyReason why) override;

  mozilla::ipc::IPCResult RecvDetectRuntimes();

  mozilla::ipc::IPCResult RecvRefreshDisplays();

  mozilla::ipc::IPCResult RecvSetGroupMask(const uint32_t& aDisplayID,

                                           const uint32_t& aGroupMask);

  mozilla::ipc::IPCResult RecvSetHaveEventListener(

      const bool& aHaveEventListener);

  mozilla::ipc::IPCResult RecvControllerListenerAdded();

  mozilla::ipc::IPCResult RecvControllerListenerRemoved();

  mozilla::ipc::IPCResult RecvVibrateHaptic(

      const mozilla::dom::GamepadHandle& aGamepadHandle,

      const uint32_t& aHapticIndex, const double& aIntensity,

      const double& aDuration, const uint32_t& aPromiseID);

  mozilla::ipc::IPCResult RecvStopVibrateHaptic(

      const mozilla::dom::GamepadHandle& aGamepadHandle);

  mozilla::ipc::IPCResult RecvStartVRNavigation(const uint32_t& aDeviceID);

  mozilla::ipc::IPCResult RecvStopVRNavigation(const uint32_t& aDeviceID,

                                               const TimeDuration& aTimeout);

  mozilla::ipc::IPCResult RecvStartActivity();

  mozilla::ipc::IPCResult RecvStopActivity();

  mozilla::ipc::IPCResult RecvRunPuppet(const nsTArray<uint64_t>& aBuffer);

  mozilla::ipc::IPCResult RecvResetPuppet();

 private:

  void RegisterWithManager();

  void UnregisterFromManager();

  void Bind(Endpoint<PVRManagerParent>&& aEndpoint);

  static void RegisterVRManagerInCompositorThread(VRManagerParent* aVRManager);

  // Keep the compositor thread alive, until we have destroyed ourselves.

  RefPtr<CompositorThreadHolder> mCompositorThreadHolder;

  // Keep the VRManager alive, until we have destroyed ourselves.

  RefPtr<VRManager> mVRManagerHolder;

  dom::ContentParentId mChildId;

  bool mHaveEventListener;

  bool mHaveControllerListener;

  bool mIsContentChild;

  // When VR tabs are switched the background, we won't need to

  // initialize its session in VRService thread.

  bool mVRActiveStatus;

};

class VRManagerPromise final {

  friend class VRManager;

 public:

  explicit VRManagerPromise(RefPtr<VRManagerParent> aParent,

                            uint32_t aPromiseID)

      : mParent(aParent), mPromiseID(aPromiseID) {}

  ~VRManagerPromise() { mParent = nullptr; }

  bool operator==(const VRManagerPromise& aOther) const {

    return mParent == aOther.mParent && mPromiseID == aOther.mPromiseID;

 private:

  RefPtr<VRManagerParent> mParent;

  uint32_t mPromiseID;

};

}  // namespace gfx

}  // namespace mozilla

#endif  // MOZILLA_GFX_VR_VRMANAGERPARENT_H