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_ENVIRONMENT_H_ 6 #define REMOTING_HOST_DESKTOP_ENVIRONMENT_H_ 7 8 #include <string> 9 10 #include "base/basictypes.h" 11 #include "base/callback_forward.h" 12 #include "base/memory/ref_counted.h" 13 #include "base/memory/scoped_ptr.h" 14 #include "base/memory/weak_ptr.h" 15 16 namespace base { 17 class SingleThreadTaskRunner; 18 } // namespace base 19 20 namespace webrtc { 21 class ScreenCapturer; 22 } // namespace webrtc 23 24 namespace remoting { 25 26 class AudioCapturer; 27 class ClientSessionControl; 28 class InputInjector; 29 class ScreenControls; 30 31 // Provides factory methods for creation of audio/video capturers and event 32 // executor for a given desktop environment. 33 class DesktopEnvironment { 34 public: ~DesktopEnvironment()35 virtual ~DesktopEnvironment() {} 36 37 // Factory methods used to create audio/video capturers, event executor, and 38 // screen controls object for a particular desktop environment. 39 virtual scoped_ptr<AudioCapturer> CreateAudioCapturer() = 0; 40 virtual scoped_ptr<InputInjector> CreateInputInjector() = 0; 41 virtual scoped_ptr<ScreenControls> CreateScreenControls() = 0; 42 virtual scoped_ptr<webrtc::ScreenCapturer> CreateVideoCapturer() = 0; 43 44 // Returns the set of all capabilities supported by |this|. 45 virtual std::string GetCapabilities() const = 0; 46 47 // Passes the final set of capabilities negotiated between the client and host 48 // to |this|. 49 virtual void SetCapabilities(const std::string& capabilities) = 0; 50 }; 51 52 // Used to create |DesktopEnvironment| instances. 53 class DesktopEnvironmentFactory { 54 public: ~DesktopEnvironmentFactory()55 virtual ~DesktopEnvironmentFactory() {} 56 57 // Creates an instance of |DesktopEnvironment|. Returns a NULL pointer if 58 // the desktop environment could not be created for any reason (if the curtain 59 // failed to active for instance). |client_session_control| must outlive 60 // the created desktop environment. 61 virtual scoped_ptr<DesktopEnvironment> Create( 62 base::WeakPtr<ClientSessionControl> client_session_control) = 0; 63 64 // Enables or disables the curtain mode. SetEnableCurtaining(bool enable)65 virtual void SetEnableCurtaining(bool enable) {} 66 67 // Returns |true| if created |DesktopEnvironment| instances support audio 68 // capture. 69 virtual bool SupportsAudioCapture() const = 0; 70 }; 71 72 } // namespace remoting 73 74 #endif // REMOTING_HOST_DESKTOP_ENVIRONMENT_H_ 75