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 webrtc {
  17
  18 class DesktopCaptureOptions;
  19
  20 }  // namespace webrtc
  21
  22 namespace remoting {
  23
  24 class GnubbyAuthHandler;
  25
  26 // Used to create audio/video capturers and event executor that work with
  27 // the local console.
  28 class BasicDesktopEnvironment : public DesktopEnvironment {
  29  public:
  30   virtual ~BasicDesktopEnvironment();
  31
  32   // DesktopEnvironment implementation.
  33   virtual scoped_ptr<AudioCapturer> CreateAudioCapturer() OVERRIDE;
  34   virtual scoped_ptr<InputInjector> CreateInputInjector() OVERRIDE;
  35   virtual scoped_ptr<ScreenControls> CreateScreenControls() OVERRIDE;
  36   virtual scoped_ptr<webrtc::DesktopCapturer> CreateVideoCapturer() OVERRIDE;
  37   virtual scoped_ptr<webrtc::MouseCursorMonitor> CreateMouseCursorMonitor()
  38       OVERRIDE;
  39   virtual std::string GetCapabilities() const OVERRIDE;
  40   virtual void SetCapabilities(const std::string& capabilities) OVERRIDE;
  41   virtual scoped_ptr<GnubbyAuthHandler> CreateGnubbyAuthHandler(
  42       protocol::ClientStub* client_stub) OVERRIDE;
  43
  44  protected:
  45   friend class BasicDesktopEnvironmentFactory;
  46
  47   BasicDesktopEnvironment(
  48       scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner,
  49       scoped_refptr<base::SingleThreadTaskRunner> input_task_runner,
  50       scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner);
  51
  52   scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner() const {
  53     return caller_task_runner_;
  54   }
  55
  56   scoped_refptr<base::SingleThreadTaskRunner> input_task_runner() const {
  57     return input_task_runner_;
  58   }
  59
  60   scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner() const {
  61     return ui_task_runner_;
  62   }
  63
  64   webrtc::DesktopCaptureOptions* desktop_capture_options() {
  65     return desktop_capture_options_.get();
  66   }
  67
  68  private:
  69   // Task runner on which methods of DesktopEnvironment interface should be
  70   // called.
  71   scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner_;
  72
  73   // Used to run input-related tasks.
  74   scoped_refptr<base::SingleThreadTaskRunner> input_task_runner_;
  75
  76   // Used to run UI code.
  77   scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner_;
  78
  79   // Options shared between |DesktopCapturer| and |MouseCursorMonitor|. It
  80   // might contain expensive resources, thus justifying the sharing.
  81   // Also: it's dynamically allocated to avoid having to bring in
  82   // desktop_capture_options.h which brings in X11 headers which causes hard to
  83   // find build errors.
  84   scoped_ptr<webrtc::DesktopCaptureOptions> desktop_capture_options_;
  85
  86   DISALLOW_COPY_AND_ASSIGN(BasicDesktopEnvironment);
  87 };
  88
  89 // Used to create |BasicDesktopEnvironment| instances.
  90 class BasicDesktopEnvironmentFactory : public DesktopEnvironmentFactory {
  91  public:
  92   BasicDesktopEnvironmentFactory(
  93       scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner,
  94       scoped_refptr<base::SingleThreadTaskRunner> input_task_runner,
  95       scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner);
  96   virtual ~BasicDesktopEnvironmentFactory();
  97
  98   // DesktopEnvironmentFactory implementation.
  99   virtual bool SupportsAudioCapture() const OVERRIDE;
 100
 101  protected:
 102   scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner() const {
 103     return caller_task_runner_;
 104   }
 105
 106   scoped_refptr<base::SingleThreadTaskRunner> input_task_runner() const {
 107     return input_task_runner_;
 108   }
 109
 110   scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner() const {
 111     return ui_task_runner_;
 112   }
 113
 114  private:
 115   // Task runner on which methods of DesktopEnvironmentFactory interface should
 116   // be called.
 117   scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner_;
 118
 119   // Used to run input-related tasks.
 120   scoped_refptr<base::SingleThreadTaskRunner> input_task_runner_;
 121
 122   // Used to run UI code.
 123   scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner_;
 124
 125   DISALLOW_COPY_AND_ASSIGN(BasicDesktopEnvironmentFactory);
 126 };
 127
 128 }  // namespace remoting
 129
 130 #endif  // REMOTING_HOST_BASIC_DESKTOP_ENVIRONMENT_H_