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// Copyright 2012 The Chromium Authors
// 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/functional/callback_forward.h"
#include "base/memory/weak_ptr.h"
#include "remoting/host/base/desktop_environment_options.h"
#include "remoting/protocol/desktop_capturer.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_capture_types.h"
namespace webrtc {
class DesktopCapturer;
class MouseCursorMonitor;
} // namespace webrtc
namespace remoting {
class ActionExecutor;
class ActiveDisplayMonitor;
class AudioCapturer;
class ClientSessionControl;
class ClientSessionEvents;
class DesktopDisplayInfoMonitor;
class FileOperations;
class InputInjector;
class KeyboardLayoutMonitor;
class RemoteWebAuthnStateChangeNotifier;
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() = default;
// 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;
virtual std::unique_ptr<DesktopCapturer> CreateVideoCapturer(
webrtc::ScreenId id) = 0;
// Returns a DisplayInfoMonitor that is owned by this object. Returns
// nullptr if the implementation does not support monitoring of displays
// (for example, in the Network process if multi-process is enabled).
virtual DesktopDisplayInfoMonitor* GetDisplayInfoMonitor() = 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<ActiveDisplayMonitor> CreateActiveDisplayMonitor(
base::RepeatingCallback<void(webrtc::ScreenId)> callback) = 0;
virtual std::unique_ptr<FileOperations> CreateFileOperations() = 0;
virtual std::unique_ptr<UrlForwarderConfigurator>
CreateUrlForwarderConfigurator() = 0;
virtual std::unique_ptr<RemoteWebAuthnStateChangeNotifier>
CreateRemoteWebAuthnStateChangeNotifier() = 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 std::uint32_t GetDesktopSessionId() const = 0;
};
// Used to create |DesktopEnvironment| instances.
class DesktopEnvironmentFactory {
public:
using CreateCallback =
base::OnceCallback<void(std::unique_ptr<DesktopEnvironment>)>;
virtual ~DesktopEnvironmentFactory() = default;
// Creates an instance of |DesktopEnvironment|. Callback is invoked with a
// nullptr pointer if the desktop environment could not be created for any
// reason (if the curtain failed to activate for instance).
// |client_session_control| must outlive the created desktop environment.
virtual void Create(
base::WeakPtr<ClientSessionControl> client_session_control,
base::WeakPtr<ClientSessionEvents> client_session_events,
const DesktopEnvironmentOptions& options,
CreateCallback callback) = 0;
// Returns |true| if created |DesktopEnvironment| instances support audio
// capture.
virtual bool SupportsAudioCapture() const = 0;
};
} // namespace remoting
#endif // REMOTING_HOST_DESKTOP_ENVIRONMENT_H_
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