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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 SERVICES_VIDEO_CAPTURE_VIRTUAL_DEVICE_ENABLED_DEVICE_FACTORY_H_
#define SERVICES_VIDEO_CAPTURE_VIRTUAL_DEVICE_ENABLED_DEVICE_FACTORY_H_
#include <map>
#include <utility>
#include "mojo/public/cpp/bindings/binding.h"
#include "services/video_capture/device_factory.h"
#include "services/video_capture/public/mojom/device.mojom.h"
#include "services/video_capture/public/mojom/devices_changed_observer.mojom.h"
#include "services/video_capture/public/mojom/virtual_device.mojom.h"
#if defined(OS_CHROMEOS)
#include "media/capture/video/chromeos/mojo/cros_image_capture.mojom.h"
#endif // defined(OS_CHROMEOS)
namespace video_capture {
// Decorator that adds support for virtual devices to a given DeviceFactory.
class VirtualDeviceEnabledDeviceFactory : public DeviceFactory {
public:
explicit VirtualDeviceEnabledDeviceFactory(
std::unique_ptr<DeviceFactory> factory);
~VirtualDeviceEnabledDeviceFactory() override;
// DeviceFactory implementation.
void GetDeviceInfos(GetDeviceInfosCallback callback) override;
void CreateDevice(const std::string& device_id,
mojom::DeviceRequest device_request,
CreateDeviceCallback callback) override;
void AddSharedMemoryVirtualDevice(
const media::VideoCaptureDeviceInfo& device_info,
mojom::ProducerPtr producer,
bool send_buffer_handles_to_producer_as_raw_file_descriptors,
mojom::SharedMemoryVirtualDeviceRequest virtual_device) override;
void AddTextureVirtualDevice(
const media::VideoCaptureDeviceInfo& device_info,
mojom::TextureVirtualDeviceRequest virtual_device) override;
void RegisterVirtualDevicesChangedObserver(
mojom::DevicesChangedObserverPtr observer,
bool raise_event_if_virtual_devices_already_present) override;
#if defined(OS_CHROMEOS)
void BindCrosImageCaptureRequest(
cros::mojom::CrosImageCaptureRequest request) override;
#endif // defined(OS_CHROMEOS)
private:
class VirtualDeviceEntry;
void OnGetDeviceInfos(
GetDeviceInfosCallback callback,
const std::vector<media::VideoCaptureDeviceInfo>& device_infos);
void OnVirtualDeviceProducerConnectionErrorOrClose(
const std::string& device_id);
void OnVirtualDeviceConsumerConnectionErrorOrClose(
const std::string& device_id);
void EmitDevicesChangedEvent();
void OnDevicesChangedObserverDisconnected(
mojom::DevicesChangedObserverPtr::Proxy* observer);
std::map<std::string, VirtualDeviceEntry> virtual_devices_by_id_;
const std::unique_ptr<DeviceFactory> device_factory_;
std::vector<mojom::DevicesChangedObserverPtr> devices_changed_observers_;
base::WeakPtrFactory<VirtualDeviceEnabledDeviceFactory> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(VirtualDeviceEnabledDeviceFactory);
};
} // namespace video_capture
#endif // SERVICES_VIDEO_CAPTURE_VIRTUAL_DEVICE_ENABLED_DEVICE_FACTORY_H_
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