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// Copyright 2015 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 CONTENT_BROWSER_VR_VR_DEVICE_MANAGER_H
#define CONTENT_BROWSER_VR_VR_DEVICE_MANAGER_H
#include <stdint.h>
#include <map>
#include <vector>
#include "base/macros.h"
#include "base/memory/linked_ptr.h"
#include "base/memory/scoped_ptr.h"
#include "base/threading/thread_checker.h"
#include "content/browser/vr/vr_device.h"
#include "content/browser/vr/vr_device_provider.h"
#include "content/common/content_export.h"
#include "content/common/vr_service.mojom.h"
#include "mojo/public/cpp/bindings/binding_set.h"
namespace content {
class VRDeviceManager : public mojom::VRService {
public:
~VRDeviceManager() override;
static void BindRequest(mojo::InterfaceRequest<mojom::VRService> request);
// Returns the VRDeviceManager singleton.
static VRDeviceManager* GetInstance();
mojo::Array<mojom::VRDeviceInfoPtr> GetVRDevices();
VRDevice* GetDevice(unsigned int index);
private:
friend class VRDeviceManagerTest;
VRDeviceManager();
// Constructor for testing.
explicit VRDeviceManager(scoped_ptr<VRDeviceProvider> provider);
static void SetInstance(VRDeviceManager* service);
static bool HasInstance();
void InitializeProviders();
void RegisterProvider(scoped_ptr<VRDeviceProvider> provider);
// mojom::VRService implementation
void GetDevices(const GetDevicesCallback& callback) override;
void GetSensorState(uint32_t index,
const GetSensorStateCallback& callback) override;
void ResetSensor(uint32_t index) override;
// Mojo connection error handler.
void OnConnectionError();
using ProviderList = std::vector<linked_ptr<VRDeviceProvider>>;
ProviderList providers_;
// Devices are owned by their providers.
using DeviceMap = std::map<unsigned int, VRDevice*>;
DeviceMap devices_;
bool vr_initialized_;
mojo::BindingSet<mojom::VRService> bindings_;
// For testing. If true will not delete self when consumer count reaches 0.
bool keep_alive_;
base::ThreadChecker thread_checker_;
DISALLOW_COPY_AND_ASSIGN(VRDeviceManager);
};
} // namespace content
#endif // CONTENT_BROWSER_VR_VR_DEVICE_MANAGER_H
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