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