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#include "singleapplication.h"
/**
* @brief SingleApplication::SingleApplication
* Constructor. Checks and fires up LocalServer or closes the program
* if another instance already exists
* @param argc
* @param argv
*/
SingleApplication::SingleApplication(int argc, char *argv[]) :
QGuiApplication(argc, argv)
{
_shouldContinue = false; // By default this is not the main process
socket = new QLocalSocket();
// Attempt to connect to the LocalServer
socket->connectToServer(LOCAL_SERVER_NAME);
if(socket->waitForConnected(100)){
socket->write("CMD:showUp");
socket->flush();
QThread::msleep(100);
socket->close();
} else {
// The attempt was insuccessful, so we continue the program
_shouldContinue = true;
server = new LocalServer();
server->start();
QObject::connect(server, SIGNAL(showUp()), this, SLOT(slotShowUp()));
}
}
/**
* @brief SingleApplication::~SingleApplication
* Destructor
*/
Application::~SingleApplication()
{
if(_shouldContinue){
server->terminate();
}
}
/**
* @brief SingleApplication::shouldContinue
* Weather the program should be terminated
* @return bool
*/
bool SingleApplication::shouldContinue()
{
return _shouldContinue;
}
/**
* @brief SingleApplication::slotShowUp
* Executed when the showUp command is sent to LocalServer
*/
void SingleApplication::slotShowUp()
{
emit showUp();
}
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