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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef DEVICE_VR_VR_DEVICE_BASE_H_
#define DEVICE_VR_VR_DEVICE_BASE_H_
#include <memory>
#include <vector>
#include "base/callback.h"
#include "base/component_export.h"
#include "base/macros.h"
#include "build/build_config.h"
#include "device/vr/public/mojom/vr_service.mojom.h"
#include "device/vr/vr_device.h"
#include "mojo/public/cpp/bindings/associated_remote.h"
#include "mojo/public/cpp/bindings/pending_associated_remote.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
namespace device {
// Represents one of the platform's VR devices. Owned by the respective
// VRDeviceProvider.
class COMPONENT_EXPORT(DEVICE_VR_BASE) VRDeviceBase : public mojom::XRRuntime {
public:
explicit VRDeviceBase(mojom::XRDeviceId id);
~VRDeviceBase() override;
// XRRuntime implementation
void ListenToDeviceChanges(
mojo::PendingAssociatedRemote<mojom::XRRuntimeEventListener> listener,
mojom::XRRuntime::ListenToDeviceChangesCallback callback) final;
void SetInlinePosesEnabled(bool enable) override;
void ShutdownSession(mojom::XRRuntime::ShutdownSessionCallback) override;
device::mojom::XRDeviceId GetId() const;
device::mojom::XRDeviceDataPtr GetDeviceData() const;
bool HasExclusiveSession();
// Devices may be paused/resumed when focus changes by GVR delegate.
virtual void PauseTracking();
virtual void ResumeTracking();
mojom::VRDisplayInfoPtr GetVRDisplayInfo();
// Used by providers to bind devices.
mojo::PendingRemote<mojom::XRRuntime> BindXRRuntime();
// TODO(mthiesse): The browser should handle browser-side exiting of
// presentation before device/ is even aware presentation is being exited.
// Then the browser should call StopSession() on Device, which does device/
// exiting of presentation before notifying displays. This is currently messy
// because browser-side notions of presentation are mostly Android-specific.
virtual void OnExitPresent();
protected:
// Devices tell VRDeviceBase when they start presenting. It will be paired
// with an OnExitPresent when the device stops presenting.
void OnStartPresenting();
bool IsPresenting() { return presenting_; } // Exposed for test.
void SetVRDisplayInfo(mojom::VRDisplayInfoPtr display_info);
void OnVisibilityStateChanged(mojom::XRVisibilityState visibility_state);
#if defined(OS_WIN)
void SetLuid(const LUID& luid);
#endif
mojom::VRDisplayInfoPtr display_info_;
bool inline_poses_enabled_ = true;
private:
mojo::AssociatedRemote<mojom::XRRuntimeEventListener> listener_;
bool presenting_ = false;
device::mojom::XRDeviceId id_;
device::mojom::XRDeviceData device_data_;
mojo::Receiver<mojom::XRRuntime> runtime_receiver_{this};
DISALLOW_COPY_AND_ASSIGN(VRDeviceBase);
};
} // namespace device
#endif // DEVICE_VR_VR_DEVICE_BASE_H_
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