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// 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 <string>
#include "base/basictypes.h"
#include "base/callback_forward.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
namespace base {
class SingleThreadTaskRunner;
} // namespace base
namespace webrtc {
class DesktopCapturer;
class MouseCursorMonitor;
} // namespace webrtc
namespace remoting {
namespace protocol {
class ClientStub;
} // namespace protocol
class AudioCapturer;
class ClientSessionControl;
class GnubbyAuthHandler;
class InputInjector;
class ScreenControls;
// 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 scoped_ptr<AudioCapturer> CreateAudioCapturer() = 0;
virtual scoped_ptr<InputInjector> CreateInputInjector() = 0;
virtual scoped_ptr<ScreenControls> CreateScreenControls() = 0;
virtual scoped_ptr<webrtc::DesktopCapturer> CreateVideoCapturer() = 0;
virtual scoped_ptr<webrtc::MouseCursorMonitor> CreateMouseCursorMonitor() = 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;
// Factory method to create a gnubby auth handler suitable for the particular
// desktop environment.
virtual scoped_ptr<GnubbyAuthHandler> CreateGnubbyAuthHandler(
protocol::ClientStub* client_stub) = 0;
};
// Used to create |DesktopEnvironment| instances.
class DesktopEnvironmentFactory {
public:
virtual ~DesktopEnvironmentFactory() {}
// Creates an instance of |DesktopEnvironment|. Returns a NULL 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 scoped_ptr<DesktopEnvironment> Create(
base::WeakPtr<ClientSessionControl> client_session_control) = 0;
// Enables or disables the curtain mode.
virtual void SetEnableCurtaining(bool enable) {}
// Returns |true| if created |DesktopEnvironment| instances support audio
// capture.
virtual bool SupportsAudioCapture() const = 0;
// Enables or disables gnubby authentication.
virtual void SetEnableGnubbyAuth(bool enable) {}
};
} // namespace remoting
#endif // REMOTING_HOST_DESKTOP_ENVIRONMENT_H_
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