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