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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_HOST_H_
#define REMOTING_PROTOCOL_WEBRTC_CONNECTION_TO_HOST_H_
#include <memory>
#include <string>
#include "base/memory/raw_ptr.h"
#include "base/task/single_thread_task_runner.h"
#include "remoting/protocol/channel_dispatcher_base.h"
#include "remoting/protocol/clipboard_filter.h"
#include "remoting/protocol/connection_to_host.h"
#include "remoting/protocol/errors.h"
#include "remoting/protocol/input_filter.h"
#include "remoting/protocol/session.h"
#include "remoting/protocol/webrtc_transport.h"
namespace remoting::protocol {
class ClientControlDispatcher;
class ClientEventDispatcher;
class SessionConfig;
class WebrtcVideoRendererAdapter;
class WebrtcAudioSinkAdapter;
class WebrtcConnectionToHost : public ConnectionToHost,
public Session::EventHandler,
public WebrtcTransport::EventHandler,
public ChannelDispatcherBase::EventHandler {
public:
WebrtcConnectionToHost();
WebrtcConnectionToHost(const WebrtcConnectionToHost&) = delete;
WebrtcConnectionToHost& operator=(const WebrtcConnectionToHost&) = delete;
~WebrtcConnectionToHost() override;
// ConnectionToHost interface.
void set_client_stub(ClientStub* client_stub) override;
void set_clipboard_stub(ClipboardStub* clipboard_stub) override;
void set_video_renderer(VideoRenderer* video_renderer) override;
void InitializeAudio(
scoped_refptr<base::SingleThreadTaskRunner> audio_decode_task_runner,
base::WeakPtr<AudioStub> audio_consumer) override;
void Connect(std::unique_ptr<Session> session,
scoped_refptr<TransportContext> transport_context,
HostEventCallback* event_callback) override;
void Disconnect(ErrorCode error) override;
void ApplyNetworkSettings(const NetworkSettings& settings) override;
const SessionConfig& config() override;
ClipboardStub* clipboard_forwarder() override;
HostStub* host_stub() override;
InputStub* input_stub() override;
State state() const override;
private:
// 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;
void NotifyIfChannelsReady();
WebrtcVideoRendererAdapter* GetOrCreateVideoAdapter(const std::string& label);
void CloseChannels();
void OnFrameRendered(uint32_t frame_id,
base::TimeTicks event_timestamp,
base::TimeTicks frame_rendered_time);
void SetState(State state, ErrorCode error);
raw_ptr<HostEventCallback> event_callback_ = nullptr;
scoped_refptr<base::SingleThreadTaskRunner> audio_decode_task_runner_;
// Stub for incoming messages.
raw_ptr<ClientStub> client_stub_ = nullptr;
raw_ptr<VideoRenderer> video_renderer_ = nullptr;
base::WeakPtr<AudioStub> audio_consumer_;
raw_ptr<ClipboardStub> clipboard_stub_ = nullptr;
std::unique_ptr<Session> session_;
std::unique_ptr<WebrtcTransport> transport_;
std::unique_ptr<ClientControlDispatcher> control_dispatcher_;
std::unique_ptr<ClientEventDispatcher> event_dispatcher_;
ClipboardFilter clipboard_forwarder_;
InputFilter event_forwarder_;
std::unique_ptr<WebrtcVideoRendererAdapter> video_adapter_;
std::unique_ptr<WebrtcAudioSinkAdapter> audio_adapter_;
// Internal state of the connection.
State state_ = INITIALIZING;
ErrorCode error_ = ErrorCode::OK;
};
} // namespace remoting::protocol
#endif // REMOTING_PROTOCOL_WEBRTC_CONNECTION_TO_HOST_H_
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