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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_IPC_DESKTOP_ENVIRONMENT_H_
#define REMOTING_HOST_IPC_DESKTOP_ENVIRONMENT_H_
#include "base/basictypes.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "ipc/ipc_listener.h"
#include "ipc/ipc_platform_file.h"
#include "remoting/host/desktop_environment.h"
namespace base {
class SingleThreadTaskRunner;
} // base
namespace IPC {
class ChannelProxy;
} // base
namespace remoting {
class ClientSession;
class DesktopSessionConnector;
// A variant of desktop environment integrating with the desktop by means of
// a helper process and talking to that process via IPC.
class IpcDesktopEnvironment : public DesktopEnvironment, public IPC::Listener {
public:
// |desktop_session_connector| is used to bind the IpcDesktopEnvironment to
// a desktop session, to be notified with a new IPC channel every time
// the desktop process is changed. |desktop_session_connector| must outlive
// |this|. |client| specifies the client session owning |this|.
IpcDesktopEnvironment(
scoped_refptr<base::SingleThreadTaskRunner> input_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> network_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner,
DesktopSessionConnector* desktop_session_connector,
ClientSession* client);
virtual ~IpcDesktopEnvironment();
// IPC::Listener implementation.
virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
virtual void OnChannelConnected(int32 peer_pid) OVERRIDE;
virtual void OnChannelError() OVERRIDE;
virtual void Start(
scoped_ptr<protocol::ClipboardStub> client_clipboard) OVERRIDE;
// Disconnects the client session that owns |this|.
void DisconnectClient();
// Notifies |this| that it is now attached to a desktop integration process.
// |desktop_process| specifies the process handle. |desktop_pipe| is
// the client end of the pipe opened by the desktop process.
void OnDesktopSessionAgentAttached(
IPC::PlatformFileForTransit desktop_process,
IPC::PlatformFileForTransit desktop_pipe);
private:
// Used for IPC I/O.
scoped_refptr<base::SingleThreadTaskRunner> network_task_runner_;
DesktopSessionConnector* desktop_session_connector_;
// Specifies the client session that owns |this|.
ClientSession* client_;
// True if |this| has been connected to a desktop session.
bool connected_;
// Connects |this| with the desktop process.
scoped_ptr<IPC::ChannelProxy> desktop_channel_;
DISALLOW_COPY_AND_ASSIGN(IpcDesktopEnvironment);
};
} // namespace remoting
#endif // REMOTING_HOST_IPC_DESKTOP_ENVIRONMENT_H_
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