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/*-*-c++-*-
* $Id$
*
* This file is part of plptools.
*
* Copyright (C) 1999-2001 Fritz Elfert <felfert@to.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef _RCLIP_H_
#define _RCLIP_H_
#include <rfsv.h>
#include <Enum.h>
class ppsocket;
class bufferStore;
class bufferArray;
/**
* Remote ClipBoard services via PLP
*
* This class implements access to the remote clipboard notification
* feature of the Psion. The Psion uses a file C:\System\Data\Clpboard.cbd
* for storing the content of its clipboard. This file can be accessed like
* any other regular file on the Psion using the @ref rfsv implementation.
* This class handles notification about changes of this file.
* There are two methods of notification implemented. Using @ref waitNotify ,
* a blocking method can be used and using @ref sendListen followed by
* @ref checkNotify , a polling approach (usable for GUI programs) can
* be implemented.
*/
class rclip {
public:
/**
* Constructs a new rclip object.
*
* @param skt The socket to be used by this object.
*/
rclip(ppsocket *skt);
/**
* destructor.
*/
~rclip();
/**
* Initializes a connection to the remote
* machine.
*/
void reset();
/**
* Attempts to re-establish a remote
* connection by first closing the socket,
* then connecting again to the ncpd daemon
* and finally calling @ref reset.
*/
void reconnect();
/**
* Retrieves the current status of the
* connection.
*
* @returns The connection status.
*/
Enum<rfsv::errs> getStatus();
/**
* Send initialization frame.
*
* Must be called once after a new rclip object has
* be called. It sends an initialzation frame to the
* Psion's server and returns its status.
*
* @returns The connection status.
*/
Enum<rfsv::errs> initClipbd();
/**
* Send listen request.
*
* Calling this method arms the Psion's clipboard server.
* After that, every change of the Psion's clipboard file
* will be signaled. To poll the signal, subsequent calls
* to @ref checkNotify should be made.
*
* @returns The connection status.
*/
Enum<rfsv::errs> sendListen();
/**
* Check for clipboard notification.
*
* If the Psion has sent a notification, this method returns
* @ref rfsv::E_PSI_GEN_NONE . If there is no notification
* pending, this method returns @ref rfsv::E_PSI_FILE_EOF
* All other return values are to be treated as errors
*
* @returns The connection status.
*/
Enum<rfsv::errs> checkNotify();
/**
* Send listen request and wait for notification.
*
* This method is the blocking version of the two above methods.
* It first sends a listen request and then blocks until a
* notification has sent by the Psion or an error occured.
*
* @returns The connection status, rfsv::E_PSI_GEN_NONE if a
* notification has been received.
*/
Enum<rfsv::errs> waitNotify();
/**
* Send a notification to the Psion.
*
* If the application wishes to notify the Psion after changing the
* clipboard file, this method can be used.
*
* @returns The connection status.
*/
Enum<rfsv::errs> notify();
protected:
/**
* The possible commands.
*/
enum commands {
RCLIP_INIT = 0x00,
RCLIP_NOTIFY = 0x08,
RCLIP_LISTEN = 0x04
};
/**
* The socket, used for communication
* with ncpd.
*/
ppsocket *skt;
/**
* The current status of the connection.
*/
Enum<rfsv::errs> status;
/**
* Sends a command to the remote side.
*
* If communication fails, a reconnect is triggered
* and a second attempt to transmit the request
* is attempted. If that second attempt fails,
* the function returns an error an sets rpcs::status
* to E_PSI_FILE_DISC.
*
* @param cc The command to execute on the remote side.
* @param data Additional data for this command.
*
* @returns true on success, false on failure.
*/
bool sendCommand(enum commands cc);
Enum<rfsv::errs> getResponse(bufferStore &data);
const char *getConnectName();
};
#endif
/*
* Local variables:
* c-basic-offset: 4
* End:
*/
|
