path: root/src/fbgui.h

/*
# 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
#
#
# 	   Main class of the fbgui:
#		- Manages display of components and their communications
#
*/

#ifndef FBGUI_H
#define FBGUI_H

#include <QWSServer>
#include <QtGui>
#include <QtWebKit>
#include <QxtCore>


// Internal default settings
#define DEFAULT_URL "http://www.google.com"
#define DEFAULT_DOWNLOAD_DIR "/tmp/fbgui/downloads"
#define DEFAULT_CONFIG_PATH "/etc/fbgui.conf"
#define DEFAULT_UPDATE_INTERVAL 1;
#define DEFAULT_QRC_HTML_DIR ":/html"
#define DEFAULT_FILE_TRIGGER "/tmp/fbgui/trigger"


// Global settings variables
extern QThread dmThread;
extern QString serialLocation;
extern QString fileToTriggerURL;
extern QString sessionID;
extern QString binPath;
extern QString downloadPath;
extern QUrl baseURL;
extern int debugMode;
extern int updateInterval;

class fbgui : public QMainWindow
{
	Q_OBJECT

public:
	fbgui();
	~fbgui();

private:
	//-------------------
	//   layout setup:
	//-------------------
	// Sets the layout depending on the debug mode:
	//   no debug or debugMode = 0 -> only browser shown.
	//   debugMode = 1             -> split main window in browser and debug console.
	void setupLayout();
	// Create all actions for the GUI. (Currently only quit.)
	void createActions();
	// Create a debug console widget as QTextEdit in order to print debug messages
	// directly within the GUI. This was needed since ttys can't really be used
	// for debugging purposes in the preboot environment.
    void createDebugConsole();

    //----------------------------------------
	//   control the display of components:
    //----------------------------------------
    // watches for the file triggering the loading of the URL.
    // the file can be specified by the corresponding option.
	void watchForTrigger();
	bool checkHost() const;
	void loadURL();
	QByteArray generatePOSTData();

	//----------------------------------
	//   widgets constituing the gui:
	//----------------------------------
	// QWebView for displaying internet content
	QWebView* _webView;
	// QSplitter to split the main window in two resizable frames.
	QSplitter* _splitter;
	// QTextEdit implementing a minimalistic debug console.
	QTextEdit* _debugConsole;

	//------------------
	//   action list:
	//------------------
	// closes the main window provoking the application to quit.
	QAction* _quit;
	// triggers toggleDebugConsole()
	QAction* _toggleDebugConsole;

	// watcher to detect changes in the observed directory.
	QFileSystemWatcher* _watcher;

private slots:
	// toggles debug console when action _toggleDebugConsole happens.
	void toggleDebugConsole();

	// triggered by fileChanged Signal of _watcher
	// deletes _watcher, since we don't need it anymore and tries to load URL.
	void prepareURLLoad();
};

#endif // FBGUI_H