remoting/host/basic_desktop_environment.h

   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_BASIC_DESKTOP_ENVIRONMENT_H_
   6 #define REMOTING_HOST_BASIC_DESKTOP_ENVIRONMENT_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/compiler_specific.h"
  12 #include "base/memory/ref_counted.h"
  13 #include "base/memory/scoped_ptr.h"
  14 #include "remoting/host/desktop_environment.h"
  15
  16 namespace remoting {
  17
  18 class GnubbyAuthHandler;
  19
  20 // Used to create audio/video capturers and event executor that work with
  21 // the local console.
  22 class BasicDesktopEnvironment : public DesktopEnvironment {
  23  public:
  24   virtual ~BasicDesktopEnvironment();
  25
  26   // DesktopEnvironment implementation.
  27   virtual scoped_ptr<AudioCapturer> CreateAudioCapturer() OVERRIDE;
  28   virtual scoped_ptr<InputInjector> CreateInputInjector() OVERRIDE;
  29   virtual scoped_ptr<ScreenControls> CreateScreenControls() OVERRIDE;
  30   virtual scoped_ptr<webrtc::ScreenCapturer> CreateVideoCapturer() OVERRIDE;
  31   virtual std::string GetCapabilities() const OVERRIDE;
  32   virtual void SetCapabilities(const std::string& capabilities) OVERRIDE;
  33   virtual scoped_ptr<GnubbyAuthHandler> CreateGnubbyAuthHandler(
  34       protocol::ClientStub* client_stub) OVERRIDE;
  35
  36  protected:
  37   friend class BasicDesktopEnvironmentFactory;
  38
  39   BasicDesktopEnvironment(
  40       scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner,
  41       scoped_refptr<base::SingleThreadTaskRunner> input_task_runner,
  42       scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner);
  43
  44   scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner() const {
  45     return caller_task_runner_;
  46   }
  47
  48   scoped_refptr<base::SingleThreadTaskRunner> input_task_runner() const {
  49     return input_task_runner_;
  50   }
  51
  52   scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner() const {
  53     return ui_task_runner_;
  54   }
  55
  56  private:
  57   // Task runner on which methods of DesktopEnvironment interface should be
  58   // called.
  59   scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner_;
  60
  61   // Used to run input-related tasks.
  62   scoped_refptr<base::SingleThreadTaskRunner> input_task_runner_;
  63
  64   // Used to run UI code.
  65   scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner_;
  66
  67   DISALLOW_COPY_AND_ASSIGN(BasicDesktopEnvironment);
  68 };
  69
  70 // Used to create |BasicDesktopEnvironment| instances.
  71 class BasicDesktopEnvironmentFactory : public DesktopEnvironmentFactory {
  72  public:
  73   BasicDesktopEnvironmentFactory(
  74       scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner,
  75       scoped_refptr<base::SingleThreadTaskRunner> input_task_runner,
  76       scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner);
  77   virtual ~BasicDesktopEnvironmentFactory();
  78
  79   // DesktopEnvironmentFactory implementation.
  80   virtual bool SupportsAudioCapture() const OVERRIDE;
  81
  82  protected:
  83   scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner() const {
  84     return caller_task_runner_;
  85   }
  86
  87   scoped_refptr<base::SingleThreadTaskRunner> input_task_runner() const {
  88     return input_task_runner_;
  89   }
  90
  91   scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner() const {
  92     return ui_task_runner_;
  93   }
  94
  95  private:
  96   // Task runner on which methods of DesktopEnvironmentFactory interface should
  97   // be called.
  98   scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner_;
  99
 100   // Used to run input-related tasks.
 101   scoped_refptr<base::SingleThreadTaskRunner> input_task_runner_;
 102
 103   // Used to run UI code.
 104   scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner_;
 105
 106   DISALLOW_COPY_AND_ASSIGN(BasicDesktopEnvironmentFactory);
 107 };
 108
 109 }  // namespace remoting
 110
 111 #endif  // REMOTING_HOST_BASIC_DESKTOP_ENVIRONMENT_H_