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/*
kopetecommandhandler.h - Command Handler
Copyright (c) 2003 by Jason Keirstead <jason@keirstead.org>
Kopete (c) 2002-2003 by the Kopete developers <kopete-devel@kde.org>
*************************************************************************
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
*************************************************************************
*/
#ifndef _KOPETECOMMANDHANDLER_H_
#define _KOPETECOMMANDHANDLER_H_
#include <tqdict.h>
#include <kshortcut.h>
#include "kopetemessage.h"
#include "kopete_export.h"
class KProcess;
struct CommandHandlerPrivate;
class KopeteView;
class KopeteCommandGUIClient;
namespace Kopete
{
class ChatSession;
class Plugin;
class Protocol;
class Command;
typedef TQDict<Command> CommandList;
/**
* @author Jason Keirstead <jason@keirstead.org>
*
* The Kopete::CommandHandler can handle /action like messages
*/
class KOPETE_EXPORT CommandHandler : public TQObject
{
friend class ::KopeteCommandGUIClient;
Q_OBJECT
TQ_OBJECT
public:
/**
* an enum defining the type of a command
*/
enum CommandType { Normal, SystemAlias, UserAlias, Undefined };
/**
* Returns a pointer to the command handler
*/
static CommandHandler *commandHandler();
/**
* \brief Register a command with the command handler.
*
* Command matching is case insensitive. All commands are registered,
* regardless of whether or not they are already handled by another
* handler. This is so that if the first plugin is unloaded, the next
* handler in the sequence will handle the command. However, there are
* certain commands which are reserved (internally handled by the
* Kopete::CommandHandler). These commands can also be overridden by
* registering a new duplicate command.
*
* @param tqparent The plugin who owns this command
* @param command The command we want to handle, not including the '/'
* @param handlerSlot The slot used to handle the command. This slot must
* accept two parameters, a TQString of arguments, and a Kopete::ChatSession
* pointer to the manager under which the command was sent.
* @param help An optional help string to be shown when the user uses
* /help \<command\>
* @param minArgs the minimum number of arguments for this command
* @param maxArgs the maximum number of arguments this command takes
* @param cut a default keyboard shortcut
* @param pix icon name, the icon will be shown in menus
*/
void registerCommand( TQObject *tqparent, const TQString &command, const char* handlerSlot,
const TQString &help = TQString(), uint minArgs = 0, int maxArgs = -1,
const KShortcut &cut = 0, const TQString &pix = TQString() );
/**
* \brief Register a command alias.
*
* @param tqparent The plugin who owns this alias
* @param alias The command for the alias
* @param formatString This is the string that will be transformed into another
* command. The formatString should begin with an already existing command,
* followed by any other arguments. The variables %1, %2... %9 will be substituted
* with the arguments passed into the alias. The variable %s will be substituted with
* the entire argument string
* @param help An optional help string to be shown when the user uses
* /help \<command\>
* @param minArgs the minimum number of arguments for this command
* @param maxArgs the maximum number of arguments this command takes
* @param cut a default keyboard shortcut
* @param pix icon name, the icon will be shown in menus
*/
void registerAlias( TQObject *tqparent,
const TQString &alias,
const TQString &formatString,
const TQString &help = TQString(),
CommandType = SystemAlias,
uint minArgs = 0,
int maxArgs = -1,
const KShortcut &cut = 0,
const TQString &pix = TQString() );
/**
* \brief Unregister a command.
*
* When a plugin unloads, all commands are automaticlly unregistered and deleted.
* This function should only be called in the case of a plugin which loads and
* unloads commands dynamically.
*
* @param tqparent The plugin who owns this command
* @param command The command to unload
*/
void unregisterCommand( TQObject *tqparent, const TQString &command );
/**
* \brief Unregister an alias.
*
* \see unregisterCommand( TQObject *tqparent, const TQString &command )
* @param tqparent The plugin who owns this alias
* @param alias The alais to unload
*/
void unregisterAlias( TQObject *tqparent, const TQString &alias );
/**
* \brief Process a message to see if any commands should be handled
*
* @param msg The message to process
* @param manager The manager who owns this message
* @return True if the command was handled, false if not
*/
bool processMessage( Message &msg, ChatSession *manager );
/**
* \brief Process a message to see if any commands should be handled
*
* \see processMessage( Kopete::Message &msg, Kopete::ChatSession *manager)
* \param msg A TQString contain the message
* \param manager the Kopete::ChatSession who will own the message
* \return true if the command was handled, false if the command was not handled.
*/
bool processMessage( const TQString &msg, ChatSession *manager );
/**
* Parses a string of command arguments into a TQStringList. Quoted
* blocks within the arguments string are treated as one argument.
*/
static TQStringList parseArguments( const TQString &args );
/**
* \brief Check if a command is already handled
*
* @param command The command to check
* @return True if the command is already being handled, False if not
*/
bool commandHandled( const TQString &command );
/**
* \brief Check if a command is already handled by a spesific protocol
*
* @param command The command to check
* @param protocol The protocol to check
* @return True if the command is already being handled, False if not
*/
bool commandHandledByProtocol( const TQString &command, Protocol *protocol);
private slots:
void slotPluginLoaded( Kopete::Plugin * );
void slotPluginDestroyed( TQObject * );
void slotExecReturnedData(KProcess *proc, char *buff, int bufflen );
void slotExecFinished(KProcess *proc);
void slotViewCreated( KopeteView *view );
void slotHelpCommand( const TQString & args, Kopete::ChatSession *manager );
void slotClearCommand( const TQString & args, Kopete::ChatSession *manager );
void slotPartCommand( const TQString & args, Kopete::ChatSession *manager );
void slotCloseCommand( const TQString & args, Kopete::ChatSession *manager );
//void slotMeCommand( const TQString & args, Kopete::ChatSession *manager );
void slotExecCommand( const TQString & args, Kopete::ChatSession *manager );
void slotAwayCommand( const TQString & args, Kopete::ChatSession *manager );
void slotAwayAllCommand( const TQString & args, Kopete::ChatSession *manager );
void slotSayCommand( const TQString & args, Kopete::ChatSession *manager );
private:
/**
* Helper function. Returns all the commands that can be used by a KMM of this protocol
* (all non-protocol commands, plus this protocols commands)
*/
CommandList commands( Protocol * );
/**
* Helper function for commands()
*/
void addCommands( CommandList &from, CommandList &to, CommandType type = Undefined );
CommandHandler();
~CommandHandler();
static CommandHandlerPrivate *p;
};
}
#endif
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