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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);

};

#endif // JAVASCRIPTINTERFACE_H_