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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);

    // test stuff
    void trigger();
};

#endif // JAVASCRIPTINTERFACE_H_