Add code to publish/republish once network is reachable. Fixes #1.

src/simplecasttcpservice.cpp

@@ -76,8 +76,9 @@ signals:
     void error(QTcpSocket::SocketError socketError);
 };
 
-SimpleCastTcpService::SimpleCastTcpService(MiniMediaPlayer *player,QObject *parent) : QTcpServer(parent),player(player)
+SimpleCastTcpService::SimpleCastTcpService(MiniMediaPlayer *player,QObject *parent) : QTcpServer(parent),player(player),manager(new QNetworkAccessManager(this))
 {
+    connect(manager,SIGNAL(networkAccessibleChanged(QNetworkAccessManager::NetworkAccessibility)),this,SLOT(networkAccessChanged(QNetworkAccessManager::NetworkAccessibility)));
 }
 
 bool SimpleCastTcpService::listen(const QHostAddress& address, quint16 port)
@@ -87,10 +88,23 @@ bool SimpleCastTcpService::listen(const QHostAddress& address, quint16 port)
     //Setup DNSSD
     dnsService = new KDNSSD::PublicService(QString(),"_simplecast._tcp",this->serverPort(),"local");
     dnsService->setParent(this);
+    //Start publishing now and if not, wait for networkAccessibleManager to let us know.
+    if(manager->networkAccessible() == QNetworkAccessManager::Accessible && !dnsService->isPublished())
+    {
         dnsService->publishAsync();
+    }
     return listening;
 }
 
+void SimpleCastTcpService::networkAccessChanged(QNetworkAccessManager::NetworkAccessibility accessible)
+{
+    if(accessible == QNetworkAccessManager::Accessible)
+    {
+        dnsService->publishAsync();
+    }
+        
+}
+
 void SimpleCastTcpService::close()
 {
     QTcpServer::close();

src/simplecasttcpservice.h

@@ -21,6 +21,7 @@
 #include <QTcpServer>
 #include <KDNSSD/DNSSD/PublicService>
 #include "minimediaplayer.h"
+#include <QNetworkAccessManager>
 
 /**
  * Tcp Server that responds to simple client requests and can be found over DNSSD.
@@ -37,9 +38,13 @@ public:
 protected:
     void incomingConnection(qintptr handle) override;
     
+private slots:
+    void networkAccessChanged(QNetworkAccessManager::NetworkAccessibility accessible);
+    
 private:
     MiniMediaPlayer *player;
     KDNSSD::PublicService *dnsService;
+    QNetworkAccessManager *manager;
 
 };