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//===========================================
// Lumina-desktop source code
// Copyright (c) 2017, Ken Moore
// Available under the 3-clause BSD license
// See the LICENSE file for full details
//===========================================
// This is a simple class for managing all the various desktop
// setting files, and sending out notifications about changes
//===========================================
// NOTE:
// This class has a heirarchy-based lookup/write system
// USER Settings > SYSTEM Settings > DEFAULT Settings
// XDG_CONFIG_HOME/lumina-desktop > XDG_CONFIG_DIRS/lumina-desktop > XDG_DATA_DIRS/lumina-desktop
//===========================================
#ifndef _LUMINA_DESKTOP_SETTINGS_CLASS_H
#define _LUMINA_DESKTOP_SETTINGS_CLASS_H
#include <QSettings>
#include <QFileSystemWatcher>
#include <QString>
#include <QStringList>
#include <QHash>
#include <QVariant>
class DesktopSettings : public QObject{
Q_OBJECT
public:
enum File{ System, Favorites, Environment, Session, Desktop, Panels, Plugins, ContextMenu, Keys, Animation, ScreenSaver};
//Changes to this enum need to be added to the "filesForRunMode()" and "rel_path()" functions as well
DesktopSettings(QObject *parent = 0);
~DesktopSettings();
static DesktopSettings* instance();
//Start/stop routines
void start();
void stop();
//Main Read/Write functions
QList< DesktopSettings::File > writableFiles(); //return the list of all writable files
QVariant value(DesktopSettings::File, QString variable, QVariant defaultvalue);
bool setValue(DesktopSettings::File, QString variable, QVariant value);
QStringList keys(DesktopSettings::File); //return a list of all variables which are available in this file
//Information functions
QStringList filePaths(DesktopSettings::File); //just in case we need to access any of these files outside this class
private:
enum RunMode{UserFull, SystemFull, SystemInterface };
DesktopSettings::RunMode runmode; //simple flag for which mode the current session is running in
QFileSystemWatcher *watcher;
QHash< DesktopSettings::File, QStringList > files; //location hash for where files are actually located on disk
QHash< QString, QSettings*> settings; //location hash for the settings files themselves
//Functions
void parseSystemSettings(); //run at start - determine the RunMode for this user/session
void locateFiles(); //run at start - finds the locations of the various files (based on RunMode)
void touchFile(QString path); //used to create an empty file so it can be watched for changes later
//The two functions which define the public "File" enumeration (both need updates when the enum changes)
QList< DesktopSettings::File > filesForRunMode(RunMode mode);
QString rel_path(DesktopSettings::File); //return the relative file path (starting with "/")
private slots:
void fileChanged(QString); //QFileSystemWatcher change detected
void dirChanged(QString); //QFileSystemWatcher change detected
signals:
void FileModified(DesktopSettings::File);
};
#endif
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