| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef REMOTING_HOST_DESKTOP_ENVIRONMENT_H_ |
| #define REMOTING_HOST_DESKTOP_ENVIRONMENT_H_ |
| |
| #include <cstdint> |
| #include <memory> |
| #include <string> |
| |
| #include "base/callback_forward.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/weak_ptr.h" |
| #include "remoting/host/base/desktop_environment_options.h" |
| #include "remoting/host/desktop_and_cursor_conditional_composer.h" |
| |
| namespace webrtc { |
| class DesktopCapturer; |
| class MouseCursorMonitor; |
| } // namespace webrtc |
| |
| namespace remoting { |
| |
| class ActionExecutor; |
| class AudioCapturer; |
| class ClientSessionControl; |
| class ClientSessionEvents; |
| class DesktopDisplayInfoMonitor; |
| class FileOperations; |
| class InputInjector; |
| class KeyboardLayoutMonitor; |
| class ScreenControls; |
| class UrlForwarderConfigurator; |
| |
| namespace protocol { |
| class KeyboardLayout; |
| } // namespace protocol |
| |
| // Provides factory methods for creation of audio/video capturers and event |
| // executor for a given desktop environment. |
| class DesktopEnvironment { |
| public: |
| virtual ~DesktopEnvironment() {} |
| |
| // Factory methods used to create audio/video capturers, event executor, and |
| // screen controls object for a particular desktop environment. |
| virtual std::unique_ptr<ActionExecutor> CreateActionExecutor() = 0; |
| virtual std::unique_ptr<AudioCapturer> CreateAudioCapturer() = 0; |
| virtual std::unique_ptr<InputInjector> CreateInputInjector() = 0; |
| virtual std::unique_ptr<ScreenControls> CreateScreenControls() = 0; |
| |
| // |monitor| is an optional parameter. If provided, it will be notified on |
| // every captured frame so it can refresh the display-info. Used (by |
| // DesktopCapturerProxy) only for the single-video-stream case, where there is |
| // only one capturer which owns the monitor. For multi-stream, the monitor is |
| // owned and managed independently from DesktopCapturerProxy. |
| // TODO(lambroslambrou): Remove this parameter when the single-stream |
| // implementation is removed. Alternatively, if the Win/Mac implementations |
| // of DesktopDisplayInfoLoader are updated to be event-driven (instead of |
| // polling per captured frame), this parameter could be removed even in |
| // the single-video-stream case. |
| virtual std::unique_ptr<webrtc::DesktopCapturer> CreateVideoCapturer( |
| std::unique_ptr<DesktopDisplayInfoMonitor> monitor) = 0; |
| |
| virtual std::unique_ptr<DesktopDisplayInfoMonitor> |
| CreateDisplayInfoMonitor() = 0; |
| virtual std::unique_ptr<webrtc::MouseCursorMonitor> |
| CreateMouseCursorMonitor() = 0; |
| virtual std::unique_ptr<KeyboardLayoutMonitor> CreateKeyboardLayoutMonitor( |
| base::RepeatingCallback<void(const protocol::KeyboardLayout&)> |
| callback) = 0; |
| virtual std::unique_ptr<FileOperations> CreateFileOperations() = 0; |
| virtual std::unique_ptr<UrlForwarderConfigurator> |
| CreateUrlForwarderConfigurator() = 0; |
| |
| // For platforms that require the mouse cursor to be composited into the video |
| // stream when it is not rendered by the client, returns a composing capturer. |
| // If the platform already does this, this method return null, and the caller |
| // should use CreateVideoCapturer() instead. |
| virtual std::unique_ptr<DesktopAndCursorConditionalComposer> |
| CreateComposingVideoCapturer( |
| std::unique_ptr<DesktopDisplayInfoMonitor> monitor) = 0; |
| |
| // Returns the set of all capabilities supported by |this|. |
| virtual std::string GetCapabilities() const = 0; |
| |
| // Passes the final set of capabilities negotiated between the client and host |
| // to |this|. |
| virtual void SetCapabilities(const std::string& capabilities) = 0; |
| |
| // Returns an id which identifies the current desktop session on Windows. |
| // Other platforms will always return the default value (UINT32_MAX). |
| virtual uint32_t GetDesktopSessionId() const = 0; |
| }; |
| |
| // Used to create |DesktopEnvironment| instances. |
| class DesktopEnvironmentFactory { |
| public: |
| virtual ~DesktopEnvironmentFactory() = default; |
| |
| // Creates an instance of |DesktopEnvironment|. Returns a nullptr pointer if |
| // the desktop environment could not be created for any reason (if the curtain |
| // failed to active for instance). |client_session_control| must outlive |
| // the created desktop environment. |
| virtual std::unique_ptr<DesktopEnvironment> Create( |
| base::WeakPtr<ClientSessionControl> client_session_control, |
| base::WeakPtr<ClientSessionEvents> client_session_events, |
| const DesktopEnvironmentOptions& options) = 0; |
| |
| // Returns |true| if created |DesktopEnvironment| instances support audio |
| // capture. |
| virtual bool SupportsAudioCapture() const = 0; |
| }; |
| |
| } // namespace remoting |
| |
| #endif // REMOTING_HOST_DESKTOP_ENVIRONMENT_H_ |