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koffice/lib/kross/api/script.h

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/***************************************************************************
* script.h
* This file is part of the KDE project
* copyright (C)2004-2005 by Sebastian Sauer (mail@dipe.org)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
* You should have received a copy of the GNU Library General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
***************************************************************************/
#ifndef KROSS_API_SCRIPT_H
#define KROSS_API_SCRIPT_H
#include <tqstring.h>
#include <tqstringlist.h>
#include "class.h"
namespace Kross { namespace Api {
// Forward declarations.
class Object;
class Interpreter;
class ScriptContainer;
class List;
class Exception;
/**
* Base class for interpreter dependend functionality
* each script provides.
*
* Each \a ScriptContainer holds a pointer to a class
* that implements the \a Script functionality for the
* defined \a Interpreter .
*/
class Script
{
public:
/**
* Constructor.
*
* \param interpreter The \a Interpreter instance
* that uses this \a Script instance.
* \param scriptcontainer The \a ScriptContainer instance
* this script is associated with.
*/
Script(Interpreter* const interpreter, ScriptContainer* const scriptcontainer);
/**
* Destructor.
*/
virtual ~Script();
/**
* \return true if the script throwed an exception
* else false.
*/
bool hadException();
/**
* \return the \a Exception the script throwed.
*/
Exception::Ptr getException();
/**
* Set a new exception this script throwed.
*
* \param e The \a Exception .
*/
void setException(Exception::Ptr e);
/**
* Clear previous exceptions. If called \a hadException()
* will return false again.
*/
void clearException();
/**
* Execute the script.
*
* \throws Exception on error.
* \return The execution result. Could be NULL too.
*/
virtual Kross::Api::Object::Ptr execute() = 0;
/**
* \return a list of callable functionnames this
* script spends.
*/
virtual const TQStringList& getFunctionNames() = 0;
/**
* Call a function.
*
* \throws Exception on error.
* \param name The name of the function to execute.
* \param args Optional arguments passed to the function.
* \return The result of the called function. Could be NULL.
*/
virtual Kross::Api::Object::Ptr callFunction(const TQString& name, Kross::Api::List::Ptr args) = 0;
/**
* \return a list of classnames.
*/
virtual const TQStringList& getClassNames() = 0;
/**
* Create and return a new class instance.
*
* \throws Exception on error.
* \param name The name of the class to create a instance of.
* \return The new classinstance.
*/
virtual Kross::Api::Object::Ptr classInstance(const TQString& name) = 0;
protected:
/// The \a Interpreter used to create this Script instance.
Interpreter* const m_interpreter;
/// The \a ScriptContainer associated with this Script.
ScriptContainer* const m_scriptcontainer;
private:
/// The \a Exception this script throwed.
Exception::Ptr m_exception;
};
}}
#endif