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/*
 * Copyright (c) 2010,2011 - RZ Uni Freiburg
 * Copyright (c) 2010,2011 - OpenSLX Project
 *
 * This program/file is free software distributed under the GPL version 2.
 * See http://openslx.org/COPYING
 *
 * If you have any feedback please consult http://openslx.org/feedback and
 * send your feedback to feedback@openslx.org
 *
 * General information about OpenSLX can be found under http://openslx.org
 *
 *
 * 	   Interface for javascript.
 *
 */

#ifndef JAVASCRIPTINTERFACE_H_
#define JAVASCRIPTINTERFACE_H_

#include "fbgui.h"

class JavascriptInterface: public QObject {
Q_OBJECT
public:
   JavascriptInterface(QWebFrame* parent);
   ~JavascriptInterface();

private:
   // pointer to parent
   QWebFrame* _parent;
   // function to be called withint javascript when downloads are done.
   QString _callbackOnDownloadsFinished;
   // loads jQuery code
   void loadJQuery();

   signals:
   // request the file from download manager
   void requestFile(const QString& filename);
   // quit the application
   void quitFbgui();
   // shut off the system. connected to  fbgui::performShutDown()
   void shutDownClient();
   // reboot the system. connected to  fbgui::performReboot()
   void rebootClient();

public slots:
   // make sure the interface stays attached on webpage reload
   void attachToDOM();

   // slots for calling from the webpage
   void startDownload(const QString& filename);
   void setCallbackOnFinished(const QString& function);
   const QString getSysInfo(const QString& info);
   void quit();
   void shutDown();
   void reboot();

   // callback when downloads are done.
   void callbackOnFinished();

   // slots for information exchange with the download manager.
   void updateProgressBar(const int& percent, const double& speed,
         const QString& unit);
   void downloadInfo(const QString& filename, const double& filesize);
   void notify(const QString& msg);

   // functions to help test functionality
   void trigger();
};

#endif // JAVASCRIPTINTERFACE_H_