Smb4K – Samba (SMB) share advanced browser
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/***************************************************************************
smb4kpreviewer - This class queries a remote share for a preview
-------------------
begin : Mo Mai 28 2007
copyright : (C) 2007 by Alexander Reinholdt
email : dustpuppy@users.berlios.de
***************************************************************************/
/***************************************************************************
* 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., 51 Franklin Street, Fifth Floor, Boston, *
* MA 02110-1301 USA *
***************************************************************************/
#ifndef SMB4KPREVIEWER_H
#define SMB4KPREVIEWER_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
// TQt includes
#include <tqobject.h>
#include <tqstring.h>
#include <tqptrqueue.h>
// KDE includes
#include <kprocess.h>
// forward declarations
class Smb4KPreviewItem;
/**
* This class is part of the core of Smb4K. It queries a remote SMB share for
* a preview and returns the result.
*
* @author Alexander Reinholdt <dustpuppy@users.berlios.de>
*/
class Smb4KPreviewer : public TQObject
{
Q_OBJECT
TQ_OBJECT
public:
/**
* The constructor
*
* @param parent The parent object
*
* @param name The name of this object
*/
Smb4KPreviewer( TQObject *parent = 0, const char *name = 0 );
/**
* The destructor
*/
~Smb4KPreviewer();
/**
* Get a preview of the contents of @p item.
*
* In the case that @p item represents a 'homes' share, the user will be
* prompted for the user name with which he wants to log in and the share
* name of @p item will be set to the result.
*
* @param item The item for which a preview should be
* requested.
*
* @returns TRUE if einter the share name is not 'homes' or if it could
* successfully be set to a user name. Otherwise it returns FALSE.
*/
bool preview( Smb4KPreviewItem *item );
/**
* Using this function, you can find out whether the previewer is running
* at the moment.
*
* @returns TRUE if the previewer is running or FALSE otherwise.
*/
bool isRunning() { return m_working; }
/**
* Abort any action the previewer is performing at the moment and clear
* the queue.
*/
void abort();
signals:
/**
* Emits the state the previewer is in
*
* @param state The state
*/
void state( int state );
/**
* Emits the preview after the process exited successfully. Get the contents
* of the remote share by looping through the Smb4KPreviewItem::contents() list.
*
* @param item The item for which the preview was received.
*/
void result( Smb4KPreviewItem *item );
/**
* This signal is emitted if an error occurred.
*/
void failed();
protected:
/**
* Reimplemented from TQObject
*/
void timerEvent( TQTimerEvent *e );
protected slots:
/**
* This slot receives output from stdout.
*
* @param proc The process
*
* @param buf The buffer
*
* @param len The length of the buffer
*/
void slotReceivedStdout( KProcess *proc, char *buf, int len );
/**
* This slot receives output from stderr.
*
* @param proc The process
*
* @param buf The buffer
*
* @param len The length of the buffer
*/
void slotReceivedStderr( KProcess *proc, char *buf, int len );
/**
* Is called, when the KProcess exited.
*
* @param proc The process that exited
*/
void slotProcessExited( KProcess *proc );
private:
/**
* The KProcess object
*/
KProcess *m_proc;
/**
* The output buffer
*/
TQString m_buffer;
/**
* This is the pointer to the Smb4KPreviewItem that's
* processed.
*/
Smb4KPreviewItem *m_item;
/**
* Indicates whether the previewer is running or not.
*/
bool m_working;
/**
* This pointer queue holds the pointers to the Smb4KPreviewItem
* objects that are to be processed.
*/
TQPtrQueue<Smb4KPreviewItem> m_queue;
/**
* The timer id
*/
int m_timer_id;
};
#endif