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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef REMOTING_PROTOCOL_WEBRTC_CONNECTION_TO_CLIENT_H_
#define REMOTING_PROTOCOL_WEBRTC_CONNECTION_TO_CLIENT_H_
#include <stdint.h>
#include <memory>
#include <string>
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/task/single_thread_task_runner.h"
#include "base/threading/thread_checker.h"
#include "remoting/protocol/channel_dispatcher_base.h"
#include "remoting/protocol/connection_to_client.h"
#include "remoting/protocol/host_video_stats_dispatcher.h"
#include "remoting/protocol/session.h"
#include "remoting/protocol/webrtc_transport.h"
namespace remoting::protocol {
class WebrtcVideoEncoderFactory;
class HostControlDispatcher;
class HostEventDispatcher;
class WebrtcConnectionToClient : public ConnectionToClient,
public Session::EventHandler,
public WebrtcTransport::EventHandler,
public ChannelDispatcherBase::EventHandler {
public:
WebrtcConnectionToClient(
std::unique_ptr<Session> session,
scoped_refptr<protocol::TransportContext> transport_context,
scoped_refptr<base::SingleThreadTaskRunner> audio_task_runner);
WebrtcConnectionToClient(const WebrtcConnectionToClient&) = delete;
WebrtcConnectionToClient& operator=(const WebrtcConnectionToClient&) = delete;
~WebrtcConnectionToClient() override;
// ConnectionToClient interface.
void SetEventHandler(
ConnectionToClient::EventHandler* event_handler) override;
Session* session() override;
void Disconnect(ErrorCode error,
std::string_view error_details,
const SourceLocation& error_location) override;
std::unique_ptr<VideoStream> StartVideoStream(
webrtc::ScreenId screen_id,
std::unique_ptr<DesktopCapturer> desktop_capturer) override;
std::unique_ptr<AudioStream> StartAudioStream(
std::unique_ptr<AudioSource> audio_source) override;
ClientStub* client_stub() override;
void set_clipboard_stub(ClipboardStub* clipboard_stub) override;
void set_host_stub(HostStub* host_stub) override;
void set_input_stub(InputStub* input_stub) override;
void ApplySessionOptions(const SessionOptions& options) override;
void ApplyNetworkSettings(const NetworkSettings& settings) override;
PeerConnectionControls* peer_connection_controls() override;
WebrtcEventLogData* rtc_event_log() override;
// Session::EventHandler interface.
void OnSessionStateChange(Session::State state) override;
// WebrtcTransport::EventHandler interface
void OnWebrtcTransportConnecting() override;
void OnWebrtcTransportConnected() override;
void OnWebrtcTransportError(ErrorCode error,
std::string_view error_details,
const base::Location& error_location) override;
void OnWebrtcTransportProtocolChanged() override;
void OnWebrtcTransportIncomingDataChannel(
const std::string& name,
std::unique_ptr<MessagePipe> pipe) override;
void OnWebrtcTransportMediaStreamAdded(
webrtc::scoped_refptr<webrtc::MediaStreamInterface> stream) override;
void OnWebrtcTransportMediaStreamRemoved(
webrtc::scoped_refptr<webrtc::MediaStreamInterface> stream) override;
void OnWebrtcTransportRouteChanged(const TransportRoute& route) override;
// ChannelDispatcherBase::EventHandler interface.
void OnChannelInitialized(ChannelDispatcherBase* channel_dispatcher) override;
void OnChannelClosed(ChannelDispatcherBase* channel_dispatcher) override;
private:
bool allChannelsConnected();
// Event handler for handling events sent from this object.
raw_ptr<ConnectionToClient::EventHandler> event_handler_ = nullptr;
std::unique_ptr<WebrtcTransport> transport_;
std::unique_ptr<Session> session_;
raw_ptr<WebrtcVideoEncoderFactory, AcrossTasksDanglingUntriaged>
video_encoder_factory_;
HostVideoStatsDispatcher video_stats_dispatcher_;
scoped_refptr<base::SingleThreadTaskRunner> audio_task_runner_;
SessionOptions session_options_;
std::unique_ptr<HostControlDispatcher> control_dispatcher_;
std::unique_ptr<HostEventDispatcher> event_dispatcher_;
THREAD_CHECKER(thread_checker_);
base::WeakPtrFactory<WebrtcConnectionToClient> weak_factory_{this};
};
} // namespace remoting::protocol
#endif // REMOTING_PROTOCOL_WEBRTC_CONNECTION_TO_CLIENT_H_
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