99 lines
3.1 KiB
C++
99 lines
3.1 KiB
C++
/*
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* Copyright 2007 by Aaron Seigo <aseigo@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef PLASMA_DATAENGINESCRIPT_H
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#define PLASMA_DATAENGINESCRIPT_H
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#include <plasma/plasma_export.h>
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#include <plasma/scripting/scriptengine.h>
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namespace Plasma
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{
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class DataEngine;
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class PLASMA_EXPORT DataEngineScript : public ScriptEngine
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{
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Q_OBJECT
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public:
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/**
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* Default constructor for a DataEngineScript.
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* Subclasses should not attempt to access the Plasma::DataEngine
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* associated with this DataEngineScript in the constructor. All
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* such set up that requires the DataEngine itself should be done
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* in the init() method.
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*/
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explicit DataEngineScript(QObject *parent = 0);
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~DataEngineScript();
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/**
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* Sets the Plasma::DataEngine associated with this DataEngineScript
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*/
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void setDataEngine(DataEngine *dataEngine);
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/**
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* Returns the Plasma::DataEngine associated with this script component
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*/
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DataEngine* dataEngine() const;
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/**
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* Called when the script should create a source that does not currently
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* exist.
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*
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* @param name the name of the source that should be created
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* @return true if a DataContainer was set up, false otherwise
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*/
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virtual bool sourceRequested(const QString &name);
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/**
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* Called when the script should refresh the data contained in a given
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* source.
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*
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* @param source the name of the source that should be updated
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* @return true if the data was changed, or false if there was no
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* change or if the change will occur later
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**/
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virtual bool updateSource(const QString& source);
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protected:
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void setData(const QString& source, const QString& key,
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const QVariant& value);
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void setData(const QString &source, const QVariant &value);
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void clearData(const QString& source);
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void removeData(const QString& source, const QString& key);
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void setSourceLimit(uint limit);
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void setMinimumUpdateInterval(int minimumMs);
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int minimumUpdateInterval() const;
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void setUpdateInterval(uint frequency);
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void clearSources();
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private:
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class Private;
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Private * const d;
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};
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#define K_EXPORT_PLASMA_DATAENGINESCRIPTENGINE(libname, classname) \
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K_PLUGIN_FACTORY(factory, registerPlugin<classname>();) \
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K_EXPORT_PLUGIN(factory("plasma_dataenginescriptengine_" #libname))
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} //Plasma namespace
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#endif
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