Inform the user if more images are available

recovery/mainwindow.cpp

@@ -142,6 +142,7 @@ void MainWindow::populate()
         _qpd->setWindowFlags(Qt::Window | Qt::CustomizeWindowHint | Qt::WindowTitleHint);
         _qpd->show();
         QTimer::singleShot(2000, this, SLOT(hideDialogIfNoNetwork()));
+        QTimer::singleShot(2000, this, SLOT(showMoreAvailableDialogIfNoNetwork()));
     }
 
     if (QFile::exists(SETTINGS_PARTITION))
@@ -1471,3 +1472,16 @@ void MainWindow::hideDialogIfNoNetwork()
         }
     }
 }
+
+void MainWindow::showMoreAvailableDialogIfNoNetwork()
+{
+    QByteArray carrier = getFileContents("/sys/class/net/eth0/carrier").trimmed();
+    if (carrier != "1" && ui->list->count() > 0) /* We don't want to show this if hideDialogIfNoNetwork's messagebox showed too */
+    {
+        /* No network cable inserted, but have local images */
+        QMessageBox::information(this,
+                                 tr("More images are available online"),
+                                 tr("A greater variety of more up to date images may be available online. Please insert a network cable in to the network port to access them."),
+                                 QMessageBox::Close);
+    }
+}

recovery/mainwindow.h

@@ -87,6 +87,7 @@ protected slots:
     void downloadMetaComplete();
     void onQuery(const QString &msg, const QString &title, QMessageBox::StandardButton* answer);
     void hideDialogIfNoNetwork();
+    void showMoreAvailableDialogIfNoNetwork();
 
 private slots:
     /* UI events */