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// Copyright 2014 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 REMOTING_IOS_BRIDGE_CLIENT_INSTANCE_H_
#define REMOTING_IOS_BRIDGE_CLIENT_INSTANCE_H_
#include <string>
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/message_loop/message_loop.h"
#include "net/url_request/url_request_context_getter.h"
#include "remoting/base/auto_thread.h"
#include "remoting/client/chromoting_client.h"
#include "remoting/client/client_config.h"
#include "remoting/client/client_context.h"
#include "remoting/client/client_user_interface.h"
#include "remoting/client/frame_consumer_proxy.h"
#include "remoting/client/software_video_renderer.h"
#include "remoting/ios/bridge/frame_consumer_bridge.h"
#include "remoting/jingle_glue/network_settings.h"
#include "remoting/jingle_glue/xmpp_signal_strategy.h"
#include "remoting/protocol/clipboard_stub.h"
#include "remoting/protocol/connection_to_host.h"
#include "remoting/protocol/cursor_shape_stub.h"
namespace remoting {
class ClientProxy;
// ClientUserInterface that indirectly makes and receives OBJ_C calls from the
// UI application
class ClientInstance : public ClientUserInterface,
public protocol::ClipboardStub,
public protocol::CursorShapeStub,
public base::RefCountedThreadSafe<ClientInstance> {
public:
// Initiates a connection with the specified host. Call from the UI thread. To
// connect with an unpaired host, pass in |pairing_id| and |pairing_secret| as
// empty strings.
ClientInstance(const base::WeakPtr<ClientProxy>& proxy,
const std::string& username,
const std::string& auth_token,
const std::string& host_jid,
const std::string& host_id,
const std::string& host_pubkey,
const std::string& pairing_id,
const std::string& pairing_secret);
// Begins the connection process. Should not be called again until after
// |CleanUp|
void Start();
// Terminates the current connection (if it hasn't already failed) and cleans
// up. Must be called before destruction can occur or a memory leak may occur.
void Cleanup();
// Notifies the user interface that the user needs to enter a PIN. The
// current authentication attempt is put on hold until |callback| is invoked.
// May be called on any thread.
void FetchSecret(bool pairable,
const protocol::SecretFetchedCallback& callback);
// Provides the user's PIN and resumes the host authentication attempt. Call
// on the UI thread once the user has finished entering this PIN into the UI,
// but only after the UI has been asked to provide a PIN (via FetchSecret()).
void ProvideSecret(const std::string& pin, bool create_pair);
// Moves the host's cursor to the specified coordinates, optionally with some
// mouse button depressed. If |button| is BUTTON_UNDEFINED, no click is made.
void PerformMouseAction(
const webrtc::DesktopVector& position,
const webrtc::DesktopVector& wheel_delta,
int /* protocol::MouseEvent_MouseButton */ whichButton,
bool button_down);
// Sends the provided keyboard scan code to the host.
void PerformKeyboardAction(int key_code, bool key_down);
// ClientUserInterface implementation.
virtual void OnConnectionState(protocol::ConnectionToHost::State state,
protocol::ErrorCode error) OVERRIDE;
virtual void OnConnectionReady(bool ready) OVERRIDE;
virtual void OnRouteChanged(const std::string& channel_name,
const protocol::TransportRoute& route) OVERRIDE;
virtual void SetCapabilities(const std::string& capabilities) OVERRIDE;
virtual void SetPairingResponse(const protocol::PairingResponse& response)
OVERRIDE;
virtual void DeliverHostMessage(const protocol::ExtensionMessage& message)
OVERRIDE;
virtual protocol::ClipboardStub* GetClipboardStub() OVERRIDE;
virtual protocol::CursorShapeStub* GetCursorShapeStub() OVERRIDE;
virtual scoped_ptr<protocol::ThirdPartyClientAuthenticator::TokenFetcher>
GetTokenFetcher(const std::string& host_public_key) OVERRIDE;
// CursorShapeStub implementation.
virtual void InjectClipboardEvent(const protocol::ClipboardEvent& event)
OVERRIDE;
// ClipboardStub implementation.
virtual void SetCursorShape(const protocol::CursorShapeInfo& shape) OVERRIDE;
private:
// This object is ref-counted, so it cleans itself up.
virtual ~ClientInstance();
void ConnectToHostOnNetworkThread(
scoped_refptr<FrameConsumerProxy> consumer_proxy,
const base::Closure& done);
void DisconnectFromHostOnNetworkThread(const base::Closure& done);
// Proxy to exchange messages between the
// common Chromoting protocol and UI Application.
base::WeakPtr<ClientProxy> proxyToClient_;
// ID of the host we are connecting to.
std::string host_id_;
// This group of variables is to be used on the display thread.
scoped_ptr<SoftwareVideoRenderer> video_renderer_;
scoped_ptr<FrameConsumerBridge> view_;
// This group of variables is to be used on the network thread.
ClientConfig client_config_;
scoped_ptr<ClientContext> client_context_;
scoped_ptr<protocol::ConnectionToHost> connection_;
scoped_ptr<ChromotingClient> client_;
XmppSignalStrategy::XmppServerConfig xmpp_config_;
scoped_ptr<XmppSignalStrategy> signaling_; // Must outlive client_
// Pass this the user's PIN once we have it. To be assigned and accessed on
// the UI thread, but must be posted to the network thread to call it.
protocol::SecretFetchedCallback pin_callback_;
// Indicates whether to establish a new pairing with this host. This is
// modified in ProvideSecret(), but thereafter to be used only from the
// network thread. (This is safe because ProvideSecret() is invoked at most
// once per run, and always before any reference to this flag.)
bool create_pairing_;
// Chromium code's connection to the OBJ_C message loop. Once created the
// MessageLoop will live for the life of the program. An attempt was made to
// create the primary message loop earlier in the programs life, but a
// MessageLoop requires ARC to be disabled.
base::MessageLoopForUI* ui_loop_;
// References to native threads.
scoped_refptr<AutoThreadTaskRunner> ui_task_runner_;
scoped_refptr<AutoThreadTaskRunner> network_task_runner_;
scoped_refptr<net::URLRequestContextGetter> url_requester_;
friend class base::RefCountedThreadSafe<ClientInstance>;
DISALLOW_COPY_AND_ASSIGN(ClientInstance);
};
} // namespace remoting
#endif // REMOTING_IOS_BRIDGE_CLIENT_INSTANCE_H_
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