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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 the main interface for any OS-specific system calls
// To port Lumina to a different operating system, just create a file
// called "OSInterface-<Operating System>.cpp"
//===========================================
#ifndef _LUMINA_LIBRARY_OS_INTERFACE_H
#define _LUMINA_LIBRARY_OS_INTERFACE_H
#include <QString>
#include <QStringList>
#include <QList>
#include <QObject>
#include <QVariant>
#include <QHash>
#include <QIODevice>
#include <QFileSystemWatcher>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QSslError>
class OSInterface : public QObject{
Q_OBJECT
public:
enum Interface{ Battery, Volume, Devices, Network, PowerOff, Reboot, Suspend, Updates };
private slots:
//FileSystemWatcher slots
void watcherFileChanged(QString);
void watcherDirChanged(QString);
//IO Device slots
void iodeviceReadyRead();
void iodeviceAboutToClose();
//NetworkAccessManager slots
void netAccessChanged(QNetworkAccessManager::NetworkAccessibility);
void netRequestFinished(QNetworkReply*);
void netSslErrors(QNetworkReply*, const QList<QSslError>&);
private:
//Internal persistant data storage, OS-specific usage implementation
QHash< OSInterface::Interface, QList<QVariant> > INFO;
// ============
// Internal possibilities for watching the system (OS-Specific usage/implementation)
// ============
//File System Watcher
QFileSystemWatcher *watcher;
//IO Device (QLocalSocket, QTcpConnection, QFile, etc)
QIODevice *iodevice;
//Network Access Manager (check network connectivity, etc)
QNetworkAccessManager *netman;
//Simplifications for connecting the various watcher objects to their respective slots
void connectWatcher(){
if(watcher==0){ return; }
connect(watcher, SIGNAL(fileChanged(QString)), this, SLOT(watcherFileChanged(QString)) );
connect(watcher, SIGNAL(directoryChanged(QString)), this, SLOT(watcherDirChanged(QString)) );
}
void connectIodevice(){
if(iodevice==0){ return; }
connect(iodevice, SIGNAL(readyRead()), this, SLOT(iodeviceReadyRead()) );
}
void connectNetman(){
if(netman==0){ return; }
connect(netman, SIGNAL(networkAccessibleChanged(QNetworkAccessManager::NetworkAccessibility)), this, SLOT(netAccessChanged(QNetworkAccessManager::NetworkAccessibility)) );
connect(netman, SIGNAL(requestFinished(QNetworkReply*)), this, SLOT(netRequestFinished(QNetworkReply*)) );
connect(netman, SIGNAL(sslErrors(QNetworkReply*, const QList<QSslError>&)), this, SLOT(netSslErrors(QNetworkReply*, const QList<QSslError>&)) );
}
public:
OSInterface(QObject *parent = 0) : QObject(parent){
watcher = 0;
iodevice = 0;
netman = 0;
}
~OSInterface(){
if(watcher!=0){
QStringList paths; paths << watcher->files() << watcher->directories();
if(!paths.isEmpty()){ watcher->removePaths(paths); }
watcher->deleteLater();
}
if(iodevice!=0){
if(iodevice->isOpen()){ iodevice->close(); }
iodevice->deleteLater();
}
if(netman!=0){
netman->deleteLater();
}
}
//Simple functions used to determine if the current OS supports using this class, and what levels of support
QList<OSInterface::Interface> supportedNotifications(); //Which interfaces provide change notifications
QList<OSInterface::Interface> supportedStatus(); //Which interfaces are available for "status" requests
QList<OSInterface::Interface> supportedModify(); //Which interfaces are available for "modify" requests
//Start/stop interface watchers/notifications (each only called once per session)
void start();
void stop();
//Generic status update
QList<QVariant> status(OSInterface::Interface);
// ==== Interface status output lists ====
// Battery: [ float (percent charge), bool (is Charging), double (seconds remaining) ];
// Volume: [int (percent volume) ]
// Devices: [ QStringList[ name, mountpoint, type (optional)] ] (List length depends on number of devices)
// Network: [bool (network access available)]
// PowerOff: [bool (can power off system)]
// Reboot: [bool (can reboot system)]
// Suspend: [bool (can suspend system)]
// Updates: [bool (is updating), bool (reboot required)]
// ==========
//Individual Interface interactions
bool modify(OSInterface::Interface, QList<QVariant> args); //returns: success/failure
// ==== Interface modification argument lists ====
// Battery: <NO MODIFICATION>
// Volume: [int (set percent volume) ]
// Devices: <NO MODIFICATION>
// Network: <NO MODIFICATION>
// PowerOff: [bool (skip updates - optional)]
// Reboot: [bool (skip updates - optional)]
// Suspend: [] (No input arguments)
// Updates: <NO MODIFICATION>
// ==========
signals:
void interfaceChanged(OSInterface::Interface);
};
#endif
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