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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef REMOTING_HOST_DESKTOP_PROCESS_H_
      6 #define REMOTING_HOST_DESKTOP_PROCESS_H_
      7 
      8 #include <string>
      9 
     10 #include "base/basictypes.h"
     11 #include "base/callback_forward.h"
     12 #include "base/compiler_specific.h"
     13 #include "base/memory/ref_counted.h"
     14 #include "base/memory/scoped_ptr.h"
     15 #include "base/memory/weak_ptr.h"
     16 #include "ipc/ipc_listener.h"
     17 #include "remoting/host/desktop_session_agent.h"
     18 
     19 namespace IPC {
     20 class ChannelProxy;
     21 }  // namespace IPC
     22 
     23 namespace remoting {
     24 
     25 class AutoThreadTaskRunner;
     26 class DesktopEnvironment;
     27 class DesktopEnvironmentFactory;
     28 class DesktopSessionAgent;
     29 
     30 class DesktopProcess : public DesktopSessionAgent::Delegate,
     31                        public IPC::Listener,
     32                        public base::SupportsWeakPtr<DesktopProcess> {
     33  public:
     34   DesktopProcess(
     35       scoped_refptr<AutoThreadTaskRunner> caller_task_runner,
     36       scoped_refptr<AutoThreadTaskRunner> input_task_runner,
     37       const std::string& daemon_channel_name);
     38   virtual ~DesktopProcess();
     39 
     40   // DesktopSessionAgent::Delegate implementation.
     41   virtual DesktopEnvironmentFactory& desktop_environment_factory() OVERRIDE;
     42   virtual void OnNetworkProcessDisconnected() OVERRIDE;
     43 
     44   // IPC::Listener implementation.
     45   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
     46   virtual void OnChannelConnected(int32 peer_pid) OVERRIDE;
     47   virtual void OnChannelError() OVERRIDE;
     48 
     49   // Injects Secure Attention Sequence.
     50   void InjectSas();
     51 
     52   // Creates the desktop agent and required threads and IPC channels. Returns
     53   // true on success.
     54   bool Start(scoped_ptr<DesktopEnvironmentFactory> desktop_environment_factory);
     55 
     56  private:
     57   // Crashes the process in response to a daemon's request. The daemon passes
     58   // the location of the code that detected the fatal error resulted in this
     59   // request. See the declaration of ChromotingDaemonMsg_Crash message.
     60   void OnCrash(const std::string& function_name,
     61                const std::string& file_name,
     62                const int& line_number);
     63 
     64   // Task runner on which public methods of this class should be called.
     65   scoped_refptr<AutoThreadTaskRunner> caller_task_runner_;
     66 
     67   // Used to run input-related tasks.
     68   scoped_refptr<AutoThreadTaskRunner> input_task_runner_;
     69 
     70   // Factory used to create integration components for use by |desktop_agent_|.
     71   scoped_ptr<DesktopEnvironmentFactory> desktop_environment_factory_;
     72 
     73   // Name of the IPC channel connecting the desktop process with the daemon
     74   // process.
     75   std::string daemon_channel_name_;
     76 
     77   // IPC channel connecting the desktop process with the daemon process.
     78   scoped_ptr<IPC::ChannelProxy> daemon_channel_;
     79 
     80   // Provides screen/audio capturing and input injection services for
     81   // the network process.
     82   scoped_refptr<DesktopSessionAgent> desktop_agent_;
     83 
     84   DISALLOW_COPY_AND_ASSIGN(DesktopProcess);
     85 };
     86 
     87 }  // namespace remoting
     88 
     89 #endif  // REMOTING_HOST_DESKTOP_PROCESS_H_
     90