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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_ICE_CONNECTION_TO_CLIENT_H_
#define REMOTING_PROTOCOL_ICE_CONNECTION_TO_CLIENT_H_
#include <stdint.h>
#include <memory>
#include <string>
#include "base/memory/raw_ptr.h"
#include "base/memory/scoped_refptr.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/ice_transport.h"
#include "remoting/protocol/session.h"
namespace remoting::protocol {
class AudioWriter;
class HostControlDispatcher;
class HostEventDispatcher;
class HostVideoDispatcher;
// This class represents a remote viewer connection to the chromoting host. It
// sets up all protocol channels and connects them to the stubs.
class IceConnectionToClient : public ConnectionToClient,
public Session::EventHandler,
public IceTransport::EventHandler,
public ChannelDispatcherBase::EventHandler {
public:
IceConnectionToClient(
std::unique_ptr<Session> session,
scoped_refptr<TransportContext> transport_context,
scoped_refptr<base::SingleThreadTaskRunner> video_encode_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> audio_task_runner);
IceConnectionToClient(const IceConnectionToClient&) = delete;
IceConnectionToClient& operator=(const IceConnectionToClient&) = delete;
~IceConnectionToClient() 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;
void ApplyNetworkSettings(const NetworkSettings& settings) 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;
PeerConnectionControls* peer_connection_controls() override;
WebrtcEventLogData* rtc_event_log() override;
private:
// Session::EventHandler interface.
void OnSessionStateChange(Session::State state) override;
// IceTransport::EventHandler interface.
void OnIceTransportRouteChange(const std::string& channel_name,
const TransportRoute& route) override;
void OnIceTransportError(ErrorCode error) override;
// ChannelDispatcherBase::EventHandler interface.
void OnChannelInitialized(ChannelDispatcherBase* channel_dispatcher) override;
void OnChannelClosed(ChannelDispatcherBase* channel_dispatcher) override;
// Callback passed to |event_dispatcher_|
void OnInputEventReceived(int64_t timestamp);
void NotifyIfChannelsReady();
void CloseChannels();
// Event handler for handling events sent from this object.
raw_ptr<ConnectionToClient::EventHandler> event_handler_;
std::unique_ptr<Session> session_;
scoped_refptr<base::SingleThreadTaskRunner> video_encode_task_runner_;
scoped_refptr<base::SingleThreadTaskRunner> audio_task_runner_;
IceTransport transport_;
std::unique_ptr<HostControlDispatcher> control_dispatcher_;
std::unique_ptr<HostEventDispatcher> event_dispatcher_;
std::unique_ptr<HostVideoDispatcher> video_dispatcher_;
std::unique_ptr<AudioWriter> audio_writer_;
THREAD_CHECKER(thread_checker_);
};
} // namespace remoting::protocol
#endif // REMOTING_PROTOCOL_ICE_CONNECTION_TO_CLIENT_H_
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